Answers
Answer:
kingdom
Explanation:
Kingdom is most inclusive taxonomic group shown in the table.
Classification starts from Kingdom and than proceed further.Taxonomic classification divides species in a hierarchical system beginning with a domain and ending with a single species.What is classification?The method of arranging the organisms into groups is called classification. During classification organism is put into groups based on their characteristics.What are the benefits of classification?Classification facilitates the identification of organisms.It helps to establish the relationship among various groups of organisms. It helps to study the phylogeny and evolutionary history of organisms. By studying a few animals, the characteristics of the whole group can be known.To know more about classification here
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Related Questions
How is sleet different from hail? Hail falls to the ground as liquid water, and sleet is solid. Hail falls with rain and snow, and sleet only falls with snow. Sleet can happen during thunderstorms, and hail cannot. Sleet pellets are smaller than hail.
Answers
Answer:
"Sleet pellets are samller than hail"
Explanation:
Typically hail is larger than sleet.
sleet is like ice pellets
Did you know that the largest chunk of hail wasr 8in. which can put a dent in your car or even cause roof damage!
Hope this helped,
-Kiddoo :)
A scientist hypothesizes that if the inner membrane of a mitochondrion were smooth instead of folded, less ATP would be produced. Why would this affect ATP production?
A. There would be less fluid available in the mitochondrion
B. There would be more space available in the mitochondrion
C. There would be less surface area on the inner membrane
D. There would be no means of transporting materials through the inner membrane
Answers
A scientist hypothesizes that if the inner membrane of a mitochondrion were smooth instead of folded, less ATP would be produced. because There would be less surface area on the inner membrane
A highly folded inner membrane (crista) in mitochondria prevents even small ions from passing through, maintaining a closed area inside the cell. The outer membrane of mitochondria allows the passage of most small molecules and ions. This inner membrane houses the enzymes for ATP generation and the electron-transfer molecules of the respiratory chain, while the matrix within it houses the enzymes for the TCA cycle. In order to make the reduced coenzymes produced during catabolism available as substrates for respiration, the enzyme systems that are principally responsible for the release and subsequent oxidation of reducing equivalents are consequently intimately connected.
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Since many minerals have the same ___, this is not the best way to classify them.
luster
color
hardness
Answers
Answer:
color
Explanation:
colors of lots of stuff are the same
Hope this helps!
deciduous teeth in which bone has fused to cementum and dentin, preventing exfoliation of the deciduous tooth and eruption of the underlying permanent tooth are termed
Answers
Deciduous teeth in which bone has fused to cementum and dentin, preventing exfoliation of deciduous tooth and eruption of the underlying permanent tooth are called as ankylosed deciduous teeth.
Ankylosis is the fusion of cementum, the outer layer of the tooth root, to the bone that surrounds it. In the case of deciduous teeth, ankylosis can occur when there is a delay in the eruption of the underlying permanent tooth, and the roots of the deciduous tooth continue to grow and fuse with the bone.
When ankylosis occurs in deciduous teeth, it can prevent the normal exfoliation (shedding) of the deciduous tooth and eruption of the permanent tooth. This can cause problems with tooth alignment and lead to complications such as malocclusion and orthodontic issues.
Treatment for ankylosed deciduous teeth may involve removal of the ankylosed tooth and orthodontic intervention to help guide the eruption of the permanent tooth into the correct position.
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. a series of mitochondrial proteins that transfer electron energy to atp and require oxygen.
Answers
The series of mitochondrial proteins that transfer electron energy to ATP and require oxygen is known as the electron transport chain (ETC).
The ETC is a critical component of cellular respiration and occurs in the inner mitochondrial membrane. It consists of a series of protein complexes, including NADH dehydrogenase, succinate dehydrogenase, cytochrome b-c1 complex, cytochrome c, and cytochrome oxidase. These complexes work together to transfer electrons derived from NADH and FADH2, which are produced during earlier stages of cellular respiration, and transfer them along the chain.
As electrons are passed through the protein complexes, energy is released and used to pump protons across the mitochondrial membrane, creating an electrochemical gradient. This gradient is then used by ATP synthase to produce ATP through a process known as oxidative phosphorylation.
The final acceptor of the electron transport chain is oxygen, which combines with hydrogen ions to form water. Thus, the ETC connects the process of electron transfer to the production of ATP, relying on oxygen as the final electron acceptor.
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The complete question is:
A series of mitochondrial proteins that transfer electron energy to ATP and require oxygen is called ______.
Each month, a graafian follicle ruptures on the ovarian cortex, and an ovum releases into the pelvic cavity and into the fallopian tube. This process is known as ________.
Answers
Each month, a graafian follicle ruptures on the ovarian cortex, and an ovum releases into the pelvic cavity and into the fallopian tube. This process is known as Ovulation.
The process of an egg being released from the ovary is called ovulation. The egg is released and travels down the fallopian tube, where it remains for 12 to 24 hours before being fertilized. The egg may or may not be fertilized by sperm when it is released. If the egg is fertilized, it may move to the uterus where it will implant and grow into a pregnancy.
Follicle-stimulating hormone (FSH), which is released by your body during the follicular phase, aids in the maturation and preparation of the egg in your ovary for release.
When the egg is fully developed, your body produces a large amount of luteinizing hormone (LH), which causes the egg to be released. Around day 14, between 28 and 36 hours after the LH spike, ovulation typically takes place.
Luteinization occurs after ovulation. In the event of pregnancy, hormones will prevent the lining from shedding. If not, bleeding will begin on or around day 28 of the cycle, starting the following cycle.
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Help me with this. Please.
Answers
Answer:
25%
Explanation:
Answer:
There is a 50% chance on getting a dominant trait
Explanation:
fatal anaphylaxis can be induced in mice by sensitizing the mice to penicillin v (pen v). to elicit this response, pen v is conjugated to a protein,
Answers
In the final experiment shown above, the antibodies that were depleted from the serum were the specific antibodies against Pen V-OVA.
In the final experiment described, the researchers aimed to delve deeper into the immune response and the development of severe shock in mice after being sensitized to Pen V-OVA, a specific antigen. To achieve this, they employed a multi-step procedure involving serum isolation, recipient mouse sensitization, and antibody depletion.
Initially, the researchers obtained serum from mice that had been previously immunized with Pen V-OVA. This serum contained a mixture of various components, including antibodies that were produced in response to the antigen. The objective was to investigate the effects of these antibodies on the immune response and subsequent disease progression in recipient mice.
Naive recipient mice, which had not been previously exposed to Pen V-OVA, were then chosen for the experiment. To sensitize them, a single injection of Pen V-OVA in adjuvant was administered. Adjuvants are substances that enhance the immune response to an antigen. By sensitizing the recipient mice, the researchers aimed to induce an immune response similar to that seen in the mice that produced the serum.
Following sensitization, the recipient mice were subjected to another injection. One group received an intravenous (IV) injection of Pen V-BSA, a compound consisting of Pen V (the hapten) conjugated to bovine serum albumin (BSA). This injection aimed to challenge the immune system and trigger a response specific to Pen V-OVA. The control group received an IV injection of BSA alone, lacking the Pen V component.
To determine the contribution of specific antibodies in the serum to the severity of the immune response, the researchers selectively depleted certain antibodies prior to transferring the serum into the recipient mice. Specifically, the antibodies targeting Pen V-OVA were removed or depleted from the serum sample. This depletion process involved techniques such as affinity chromatography or immunoprecipitation, which can selectively isolate or remove specific antibodies.
The rationale behind depleting the Pen V-OVA antibodies was to assess their role in the subsequent immune response and the development of severe shock in the recipient mice. By comparing the outcomes between the group that received non-depleted serum and the group that received depleted serum, the researchers could determine the specific impact of the Pen V-OVA antibodies on disease severity.
The complete question should be:
In the final experiment described above, the serum obtained from mice immunized with Pen V-OVA was injected into naive recipient mice. These recipient mice were then sensitized by a single intraperitoneal (IP) injection of Pen V-OVA in adjuvant, followed by an intravenous (IV) injection of Pen V-BSA or BSA alone after 24 hours. Additionally, one group of mice received serum that had specific antibodies depleted prior to transfer into the recipients. The resulting disease in these mice was slightly milder, characterized by severe shock instead of death. The data presented in Table Q14.16B represent the ratio of mice experiencing severe shock to the total number of mice in each condition.
From the information provided, the question is asking which specific antibodies were removed or depleted from the serum in the final experiment.
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in a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. allele d produces tall plants and is dominant to d for short plants, and allele r produces round fruit and is dominant to r for oval fruit. a. a plant with the genotype dr/dr produces gametes. identify gamete genotypes, label parental and recombinant gametes, and give the frequency of each gamete genotype. b. give the same information for a plant with the genotype dr/dr.
Answers
a. A plant with the genotype dr/dr produces two types of gametes: d-r and d-r. The parental gametes are d-r and d-r, while the recombinant gametes are d-r and d-r. The frequency of each gamete genotype is equal, since they are produced through independent assortment during meiosis. Therefore, the frequency of both parental and recombinant gametes is 50%.
b. A plant with the genotype Dr/Dr produces four types of gametes: D-r, d-R, D-R, and d-r. The parental gametes are D-R and d-r, while the recombinant gametes are D-r and d-R. The frequency of each gamete genotype can be calculated using the formula: frequency = (number of that genotype/total number of gametes) x 100%. Therefore, the frequency of D-R and d-r gametes (parental gametes) is 25% each, while the frequency of D-r and d-R gametes (recombinant gametes) is 12.5% each.
a. For a plant with the genotype Dr/Dr (homozygous for both dominant traits):
Since the alleles are syntenic, we can analyze their combinations during gamete formation. The possible gamete genotypes would be:
1. Parental Gametes (no recombination):
- Dr (tall and round) - frequency: 82%
2. Recombinant Gametes (recombination occurred):
- Dr (tall and oval) - frequency: 9%
- dR (short and round) - frequency: 9%
b. For a plant with the genotype dr/dr (homozygous for both recessive traits):
In this case, the plant can only produce one type of gamete since both alleles are recessive:
1. Parental Gamete (no recombination):
- dr (short and oval) - frequency: 100%
There will be no recombinant gametes in this case since the plant is homozygous for both recessive traits.
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Select all that apply.
Taxonomy _____.
Answers
Answer:
classification or c on edge
Explanation
at eight weeks of development, the fetus has developed all of the following except: group of answer choices a fully formed digestive system fully formed facial features a beating heart a complete central nervous system well-defined fingers and toes
Answers
At eight weeks of development, the fetus has developed all of the following except a fully formed digestive system.
At eight weeks of development, the fetus has developed many important structures and organs. It has a beating heart, a complete central nervous system, and well-defined fingers and toes. It also has some facial features, although they may not be fully formed yet. However, the digestive system is not fully formed at eight weeks.
While the basic structure of the digestive system is present, including the mouth, esophagus, stomach, and intestines, these structures are not yet functional and the fetus is still dependent on the mother's placenta for nutrition. The digestive system will continue to develop and mature over the course of fetal development and after birth.
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To______
means to allow another
road user to cross or use an intersection or
roadway before you do.
Answers
Answer: Yield
Explanation: Yielding is an important traffic rule that promotes safety and smooth flow of traffic. It is an important practice that helps maintain order on the roads and promotes safety for all road users. It's essential to be attentive, follow traffic signs and signals, and be aware of the right of way rules in your area to ensure a safe driving experience.
When you yield, you give the right of way to another driver or pedestrian. This means that you let them go first, even if it might inconvenience you or require you to slow down or stop.
Yielding is typically required in situations such as:
Yielding to pedestrians: When you approach a crosswalk or intersection where pedestrians are waiting to cross, you should yield to them and allow them to safely cross the road before you continue to drive. Drivers must yield to pedestrians within a crosswalk.
Yielding at intersections: When you approach an intersection where there are other vehicles, you should yield to those already in the intersection or approaching from the right. This helps prevent accidents and ensures a smooth flow of traffic.
Yielding when merging: When merging onto a highway or another lane, you should yield to the vehicles already in that lane. This allows for a safe and efficient merging process.
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You have been given three plants: two produce solid black orchids, and one has grey petals. You cross each black-flowered plant to the grey plant with the following results F1 Parents black #1 X grey 87 solid black, 83 spotted black black #2 X grey all black You cross the solid black-flowered F1 plants from cross #2 with the following results in the F2: 132 black 35 spotted black 11 grey Devise the best genetic explanation for these results.
This cross is an example of (check all that apply):
a. recessive epistasis
b. incomplete dominance
c. codominance
d. recessive lethal allele
e. dominant epistasis
f. pleiotropy
g. multiple (>2) alleles of a gene
Depending on the number of genes you think are involved, use the symbols A or a, B or b, D or d, E or e, F or f for the first, second, third, etc genes.
Using these symbols (e.g. AAbbDdEEff) what is the genotype of the original grey plant?
Depending on the number of genes you think are involved, use the symbols A or a, Bor b, D or d, E or e, F or f for the first, second, third, etc genes.
Using these symbols (e.g. AAbbDdEEff), what is the genotype of the original black #1 strain?
Answers
The genotype of the original black #1 strain is AaBb, which is heterozygous for both genes.
To devise the best genetic explanation for these results, we need to use the Punnett square.Cross 1 (black #1 X grey) produces F1 with a phenotype ratio of 87 solid black and 83 spotted black. Since 87 + 83 = 170, we can conclude that this cross involves only one gene (also known as monohybrid cross).
We can now represent the cross 1 in the Punnett square:Aa x aa| A | a|----|---|a| Aa| aa|The F1 generation is Aa, which is heterozygous for the flower color gene.Cross 2 (black #2 X grey) produces F1 with a phenotype ratio of all black. This means that black #2 is homozygous for the flower color gene (since it only produces one type of offspring).The genotype of black #2 is aa.The F1 plants from cross 2 are also homozygous for the flower color gene because all offspring were black. Let's denote this as aa aa in the Punnett square.
Cross 3 involves crossing the F1 plants from cross 2 (aa aa) to obtain F2 offspring. The F2 phenotype ratio is 132 black: 35 spotted black: 11 grey. This is consistent with a dihybrid cross, which involves two genes (i.e. flower color and another trait).We can represent this cross using a dihybrid Punnett square.
Let's use the first Punnett square to represent the flower color gene and a second Punnett square to represent the second gene:Aa x Aa| A | a|----|---|A| AA| Aa|a| Aa| aa|BB x Bb| B | b|----|---|B| BB| Bb|b| Bb| bb|The F1 generation is AaBb, which is heterozygous for both genes. Let's now cross AaBb to obtain F2 offspring.AB Ab aB abAB AABb AaBb AABbAaBb Aabb Aabb aabbThe F2 phenotype ratio is 9 A_B_ : 3 A_bb : 3 aaB_ : 1 aabb, where _ represents any allele (A, a, B, b, D, d, E, e, F, or f). Since the observed ratio is 132:35:11, we can assume that the genotype of the original black #1 strain was AaBb, which is heterozygous for both genes.
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Question: What do you know about animal production, processing,
marketing, and breeding?
Answers
Answer:
sex
Explanation
they have to sexual intercourse to produce a baby
Answer:
production produce marketing and breeding because they also born baby and processing foods also in there part of body
Explanation:
little bit only I don't know so much if you think the answer is correct then it ok
QuestionIf an exothermic reaction in equilibrium experiences a rise in temperature, what happens?AThe reaction shifts to the left toward reactants.BThe reaction shifts to the right toward products.CThe reaction shifts to the left toward products.DThe reaction shifts to the right toward reactants.EThe reaction remains unchanged.Hard
Answers
The correct answer is (A) The reaction shifts to the left toward reactants.
If an exothermic reaction in equilibrium experiences a rise in temperature, the equilibrium position of the reaction will shift to the left toward reactants.
This is because an exothermic reaction releases heat, so an increase in temperature will cause the reaction to shift in the direction that absorbs heat, which is the direction of the reactants. The shift occurs in order to counteract the effect of the increase in temperature and maintain the equilibrium constant of the reaction.
This relationship is described by Le Chatelier's principle, which states that a system at equilibrium will respond to any stress or change in conditions in a way that opposes the change and restores the equilibrium. In this case, the increase in temperature is the stress or change, and the shift to the left is the response that opposes the change.
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The burning of biomass, such as wood, is an example of:
a) active solar heating.
b) indirect use of solar energy.
c) passive solar heating.
d) using a non-renewable resource.
e) None of these
Answers
The burning of biomass, such as wood, is an example of (b) indirect use of solar energy. It was converted from solar energy to chemical energy by the process of photosynthesis.
What is solar energy?Solar energy is radiant light and heat energy generated by the sun. Solar energy is the cleanest and most abundant and renewable energy resource available in the world. This is why people today think about using solar energy as a great preference.
Solar energy can be converted to chemical energy by the process of photosynthesis. This is the initial process in resulting the burning of biomass. The energy then will be stored as chemical energy in plant tissues or animal waste products.
Thus, the burning of biomass is an example of indirect use of solar energy. This is also known as one of the oldest fuels to human.
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According to the law of conservation of mass, what is the mass of sodium oxide (Na2O) formed in this reaction?
Answers
Answer:
123.96 grams
Explanation:
Add the numbers underneath 4Na and O2 (^3 ^)
in the context of hormones that suppress appetite, is produced by fat cells and inhibits neurons in the hypothalamus that contain the appetite stimulant neuropeptide y (npy), thereby signaling the body that it has had enough to eat. a) dopamine
b) ghrelin
c) leptin
d) glucose
Answers
Answer: leptin
Explanation:
compare the two procedures used to obtain the cells needed for preparing a fetal karyotype?
Answers
Amniocentesis. This procedure collects a sample of the amniotic fluid that surrounds the unborn baby during pregnancy. The fluid contains cells from the baby that can be tested. Amniocentesis is usually done between week 15 and 20 of pregnancy.
what is a determinant for organ compatibility and rejection of transplants?
Answers
The determinant for organ compatibility and rejection of transplants is the major histocompatibility complex (MHC), also known as human leukocyte antigen (HLA) in humans.
MHC is a group of genes that encode proteins found on the surface of cells that help the immune system recognize self from non-self. The MHC proteins play a crucial role in determining whether a transplanted organ is accepted or rejected by the recipient's immune system.
If the MHC molecules on the donor organ are recognized as foreign by the recipient's immune system, the immune cells will attack and destroy the transplanted organ, resulting in rejection. Therefore, before a transplant, doctors perform HLA typing on both the donor and recipient to ensure a good match, which can minimize the risk of rejection.
HLA matching is particularly important for solid organ transplants, such as kidneys, lungs, and hearts, as well as bone marrow transplants, where the immune system must be suppressed to prevent rejection.
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Definition
Unit 6 Vocab: DNA, RNA, and Protein Synthesis
nucleic acid molecule that allows for the transmission of genetic information an
protein synthesis
Your answer
Answers
The nucleic acid molecule that allows transmission of genetic material and protein synthesis is called messenger RNA. This messenger RNA serves as an intermediate for protein synthesis because DNA is protected in the nucleus.
What is translation?
process by which cell makes proteins using the genetic information carried in messenger RNA (mRNA).
There are two main types of nucleic acids. two types are DNA or deoxyribonucleic acid, and RNA or ribonucleic acid. Both of these molecules serve function in gene expression.
RNA carries genetic information that is translated by ribosomes into various proteins necessary for the cellular processes. mRNA, rRNA, and tRNA are the three main types of RNA involved in the protein synthesis. RNA also serves as primary genetic material for viruses.
Translation, second step in getting from a gene to a protein, takes place in the cytoplasm.
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What is the force of a 3 kg skateboard accelerating at a rate of 4m/s2? Plug in the numbers: Force = mass x acceleration
Answers
Mass= 3kg
Acceleration =4m/s
Putting the formula:
F=m*s
F=3*4
F=12N( Newton is the S.l unit of force)
members of phylum rotifera are single-celled organisms.
Answers
Answer:
False
Explanation:
hope i helped
Body Surface Area -adapted from the Redlarski’s paper (link)
Body surface area (BSA) plays a key role in several medical fields, including cancer chemother-
apy, transplantology, burn treatment and toxicology. BSA is often a major factor in the
determination of the course of treatment and drug dosage. A series of formulae to simplify
the process have been developed. Because easy-to-identify, yet general, body coefficient re-
sults of those formulae vary considerably, the question arises as to whether the choice of a
particular formula is valid and safe for patients. These empirical formulae are derived by
observing/fitting the experimental data and do not have a rigid model or reason explain-
ing their validity. In this problem, you will build a physics model to create your own BSA
equation other than using an empircal formula.
(a) Use a cylinder of height H and radius r as a approximation of the shape of a human.
Calculate the human’s body surface area(BSA), volume(V), and mass(M) in terms of
r and H. You may assume the density of human is 1000 kg/m3.
(b) Rewrite the surface area in in terms of height and mass.
(c) According to the equation you derived above, what is your body surface area? Is it the
same as the result calculated by using the empirical fomulae: BSA = √M H/C with
BSA in m2, M in kg, H in cm, and C=60 is a constant in this paper? If not, what is the percentage differences?
Note: percentage difference for two values E1 and E2 are |E1−E2|
(E1+E2)/2 ×100%.
(d) Considering the formula BSA = √MH/C with fixed H, plot a graph with BSA on
the y-axis and M on the x-axis. Explain what the trend/curve means.
(e) Considering the formula BSA = √MH/C with fixed BSA, plot a graph with H on
the y-axis and M on the x-axis. Explain what the trend/curve means.
(e) Considering the formula BSA = √MH/C with fixed BSA, plot a graph with H on
the y-axis and M on the x-axis. Explain what the trend/curve means.
Answers
a)Using a cylinder of height H and radius r as an approximation of the shape of a human, the surface area, volume, and mass are calculated in terms of r and H as follows:
Surface area (S) of a cylinder is 2πrh + 2πr², where h is the height, and r is the radius of the cylinder. In this case, the height of the cylinder is equivalent to the height of the human body. Hence;S = 2πrH + 2πr²Mass (M) of a cylinder is given by M = ρV, where ρ is the density of the cylinder, and V is the volume. Hence, the mass of a cylinder in terms of its radius and height isM = πr²HρVolume (V) of a cylinder is given by V = πr²H. Hence, the volume of a cylinder in terms of its radius and height isV = πr²H(b)The body surface area (BSA) of a human can be rewritten in terms of the height (H) and mass (M) as follows:
BSA = √(M/H C)We can rewrite it as H = M/ (BSA² C)Thus, H can be expressed as a function of M and BSA asH = M/(BSA² C)(c)If r = 0.15 m and H = 1.70 m, then using the equation, S = 2πrH + 2πr², the body surface area is given as:
S = 2π (0.15)(1.70) + 2π (0.15)² = 1.77 m²Using the empirical formula, BSA = √(MH/C) with M = 60 kg and H = 170 cm, we get BSA = 1.85 m²The percentage difference is given by;|E1 − E2| / (E1 + E2) / 2 × 100%where E1 = 1.77 m² and E2 = 1.85 m²Thus;|1.77 – 1.85| / (1.77 + 1.85) / 2 × 100% = 4.2%(d)Considering the formula BSA = √(MH/C) with fixed H, a graph with BSA on the y-axis and M on the x-axis can be plotted.The trend shows a non-linear increase in BSA as the mass increases.
(e)Considering the formula BSA = √(MH/C) with fixed BSA, a graph with H on the y-axis and M on the x-axis can be plotted.The trend shows a linear increase in height as the mass increases.
About HumanHuman are the most numerous and widespread primate species. They are a type of great ape that is characterized by a bipedal gait and capable cognitive abilities thanks to their large and complex brains. From the moment humans were created, somatic cell chromosomes have a total of 46 egg cells or sperm cells have only 23 chromosomes. The existence of fertilization returns the number of chromosomes of body cells to 46.
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Early manifestations of a developing metabolic acidosis include ? coma. headache. muscle cramps. short and shallow respirations.
Answers
Early manifestations of a developing metabolic acidosis include headache.
What is metabolic acidosis ?
It is the accumulation of too much acid in the body fluids which indicates kidney or lung problems. It is an electrolyte disorder with high concentration of hydrogen ions or with low concentration of bicarbonate ions in the body.
This can be diagnosed by measuring serum electrolytes and testing arterial blood gases.
Early symptoms :
Headacheconfusionlack of appetitefatiguerapid respirationLate symptoms :
vomitinghigh diabetes chronic kidney problemsosteoporosismuscle lossTreatment : Administer sodium bicarbonate to raise blood pH.
So from the above, we can conclude that early manifestations of a developing metabolic acidosis include headache.
tiktaalik was a prehistoric fish that was an ancestor to modern tetrapods. it shared anatomical features with tetrapods (e.g., four limbs) and fish (e.g., gills, scales). with these features, tiktaalik could be best described as a(n)
Answers
With these features, Tiktaalik could best be described as a(n) transitional form or intermediate form between fish and tetrapods.
Transitional or intermediate forms are organisms that exhibit characteristics of both ancestral and derived groups. They are crucial in understanding the evolutionary relationships between different groups of organisms. Tiktaalik is an excellent example of a transitional form, as it exhibits a mixture of features seen in fish and tetrapods.
Tiktaalik possessed fish-like features such as gills, scales, and fins, but it also had tetrapod-like features such as a flat head with eyes on top, a neck, ribs, and a robust skeleton that could support its body weight. It also had four limbs with a wrist joint that could bend, which allowed it to prop itself up in shallow water and potentially move onto land.
Overall, Tiktaalik represents an important transitional form that helps us understand the evolutionary history of tetrapods and the adaptation of fish to life on land.
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What happens to DNA once transcription is done?
O It is destroyed.
O It makes more copies of itself right away.
O It zips back up until it is necessary to transcribe the gene again.
O It mutates.
Answers
Answer:
it makes more copies of itself right away
Explanation:
transcription is the process by which the information in a strand of DNA is COPIED into a new molecule of the messager RNA
When DNA transcription is done, it zips back up until it is necessary to transcribe the gene again (option C)
What is DNA transcription?The process of DNA transcription involves copying the information, from DNA into RNA.
Once transcription is complete the DNA molecule returns, to its double helix structure. This occurs because DNA is highly stable and doesn't require transcription. The DNA molecule is transcribed again solely when the cell requires production of a protein.
With the above information, we can conclude that when DNA transcription is done, it zips back up until it is necessary to transcribe the gene again (option C)
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What is the primary cause of poor air quality in Mexico City?
O gas emissions from drilling
O pollution from car exhaust
O particulates from erosion
Odust from deforestation
Answers
Answer:
Located in the crater of an extinct volcano, Mexico City is about 2,240 metres above sea level. The lower atmospheric oxygen levels at this altitude cause incomplete fuel combustion in engines and higher emissions of carbon monoxide and other compounds
Second option: pollution from car exhaust
Explanation:
The Tissues of vascular Plants are organized into more complex structures that carry out a Variety of functions in the plant what structure is formed by a Group of tissues that work together to carry out a Specific function
A) Cell
B) Organ system
C)Organism
D Organ
Due in 19 Minutes Best answer gets Brainliest
Answers
Antisense RNA is a single stranded RNA that is complementary to a protein coding messenger RNA (mRNA). How might antisense RNA affect translation
Answers
Antisense RNA affects translation by binding to mRNA, causing it to be degraded and inhibiting protein synthesis. Antisense RNA is a type of non-coding RNA that is complementary to a specific messenger RNA (mRNA) molecule.
It is single-stranded RNA that can form base pairs with a target mRNA sequence, which leads to the inhibition of protein synthesis by affecting the translation process. Antisense RNA can bind to mRNA molecules through complementary base pairing and prevent ribosomes from initiating translation.
This is accomplished through a variety of mechanisms, including preventing the binding of ribosomes to the mRNA or causing the degradation of the mRNA by RNAse enzymes. As a result, protein synthesis is inhibited, leading to a reduction or complete loss of protein expression. Antisense RNA is a potent regulatory tool for gene expression and has the potential to be used in the treatment of various diseases.
You can learn more about protein synthesis at: brainly.com/question/29763759
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