I will give brainliest!!!
Which of the following is a claim that can be made about the cells found inside the heart?
A. The cells that build heart tissue all have the same structure and function
B. The cells that build heart tissue are found inside all other organs in the human body
C. There is only one type of cell that builds heart tissue which has only one function
D. There is multiple types of cells that build heart tissue each with a unique function
Answers
Answer:
D
Explanation:
I am just guessing so please don't hurt me!
Have a great day:)
Related Questions
. restate and evaluate the conclusion gene comes to about the cause of wars.
Answers
The conclusion that Gene comes to about the cause of wars is that they are primarily caused by economic interests and power struggles among nations.
He believes that wars are driven by the desire for resources, territory, and dominance. Gene argues that conflicts arise when nations compete for economic advantages, access to natural resources, or political control. He suggests that underlying economic and power dynamics play a significant role in instigating and perpetuating wars. Gene's conclusion implies that addressing these root causes and promoting equitable distribution of resources and power may help prevent or mitigate future conflicts.
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Imagine that you are standing erect, with your head facing forward and your arms at 90 degree angles to your body, pointing straight out from either side to your left and to your right. Now imagine that an ant crawls from the top of your head in a straight line down your face and the front of your neck, and then turns and goes along one of your arms until it reaches your fingertips. If you were to describe the ant's path using directional terms, what would you say?
Answers
It traveled from the head and down the neck in a caudal direction, then turned and traveled in a lateral direction, and ended up at the fingertips, distal to the elbow.
What is direction?
The velocity acceleration of the body is negative and the velocity of the body is positive. The velocity decreases with time, but the body moves in the positive x direction. i.e. in the direction of speed. So the direction of motion is determined by the sign of the velocity.To know more about direction, click the link given below:
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The fruiting body found above ground in fungi is called the
A. cap.
B. hyphae.
C. mycelium.
Answers
Answer:
fruiting body is called cap
The mycelium is the fruiting body found above ground in fungi.
The pileus is the technical name for the cap, or cap-like part, of a basidiocarp or ascocarp (fungal fruiting body) that supports a spore-bearing surface, the hymenium.
A hypha is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium.
A mycelium is a network of fungal threads or hyphae. Mycelia often grow underground but can also thrive in other places such as rotting tree trunks. A single spore can develop into a mycelium. The fruiting bodies of fungi, such as mushrooms, can sprout from a mycelium.
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Discussion 1. What percentage of asci observed resulted from the fusion of cells from different strains? 2. What percentage of those asci resulting from the fusion of different strains demonstrates crossovers?
Answers
During the study of genetics and inheritance, it is important to observe the sexual cycle of fungi to determine the genetic variations within the offspring. In the 1920s, T. H. Morgan and his colleagues used fungal genetics to test the hypothesis of the existence of recombination. For instance, they observed the sexual cycle of the common bread mold, Neurospora crassa, to investigate how crossing-over occurs between homologous chromosomes during meiosis.
As a result of their investigation, Morgan and his colleagues discovered that, during meiosis, four haploid ascospores are produced within a specialized sac called an ascus. These ascospores are produced when two nuclei from two different hyphae (cells) combine and fuse together.
This fusion creates a cell with two haploid nuclei, which subsequently undergoes meiosis to create four haploid ascospores. Hence, an ascus will contain four haploid ascospores produced by a single diploid cell resulting from the fusion of two haploid cells.
The percentage of asci observed that resulted from the fusion of cells from different strains is 100%. This is because the fusion of haploid cells from different strains is essential for the production of a diploid cell that will then undergo meiosis to form four haploid ascospores.
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What are the first 5 steps of neonatal resuscitation?
Answers
The Neonatal Resuscitation Program® (NRP®) training provides healthcare workers who care for babies at the moment of delivery with care of newborn and mother that supports efficient team-based treatment.
The first 5 steps of neonatal resuscitation are:
Ensure a clear airway: The first step in neonatal resuscitation is to ensure that the airway is clear and unobstructed. This may involve gently suctioning the baby's mouth and nose to remove any mucus or other debris.
Provide positive pressure ventilation: If the baby is not breathing or is breathing inadequately, the next step is to provide positive pressure ventilation (PPV) using a bag and mask or other ventilation device.
Check for a pulse: The third step in neonatal resuscitation is to check for a pulse, which can be done by feeling for a pulse in the baby's umbilical cord or by using a pulse oximeter to measure the baby's heart rate.
Administer epinephrine: If the baby remains unresponsive and does not have a pulse despite attempts at PPV, the next step is to administer epinephrine.
Consider advanced measures: If the baby still does not respond to resuscitation efforts after epinephrine has been administered, the resuscitation team may consider additional measures such as intubation.
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Which of these are genes that have more than two alleles?
O the gene for plant height in pea plants
O the gene for flower color in pea plants
O the C gene for melanin production in rabbit coats
O the genes found in the human mitochondria
Answers
Answer: the C gene for melanin production is rabbit coats.
Explanation:
What is expected to happen to the species that is less suited to
compete for resources if the competitive exclusion principle is
observed?
Answers
Answer:
die out and move from the area are the answer
Explanation:
Which statement best describes why artificial selection is not a favored conservation strategy? Conservation saves weaker species, leaving stronger species behind to reproduce. Artificial selection decreases the rate of natural selection and change within a population. Artificial selection reverses natural selection by selecting species most adapted to survive. Individuals selected for breeding may have abnormalities not common to the population.
Answers
Answer:
The correct option is the last one listed (or D); "INDIVIDUALS SELECTED FOR BREEDING MAY HAVE ABNORMALITIES NOT COMMON TO THE POPULATION."
Explanation:
Not only did I take the test and get this question correct, but also because "Individual organisms can be genetically manipulated for a specific trait. A change in a specific trait can be beneficial or detrimental to the survival of a population."
Individuals selected for breeding may have abnormalities not common to the population. This statement best describes why artificial selection is not a favored conservation strategy.
Why is artificial selection is not a favored conservation strategy?Because some of the offspring may receive a combination of various "tall" gene variations from each parent, collectively they may lead the offspring to be taller, some of the offspring may even be taller than both of their parents. This population will continue to increase in height as a result of recurrent selective breeding over several generations.The selective breeding that produced the hundreds of current dog breeds has put purebred dogs at risk for a wide range of health issues, both impacting the body and temperament. Inbreeding among human populations can raise the frequency of ordinarily rare genes that cause diseases.learn more about artificial selection here: https://brainly.com/question/7717715
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WILL MARK YOU BRAINLIEST!! Use your own words
Answers
What type of graph will you use?
A bar graph
What is the dependent variable?
The different types of food because they are the only items in the experiment that are being changed.
What is the independent variable?
The slugs because they are not being changed at all.
Which food source was favored the most by the slugs and how do you know this?
Apples and I know this because on the comparison table apples had the highest amount of grams eaten.
Give your graph a title.
This is up to you!
Why was this graph drawn as a bar graph or a line graph?
Because it is best to use bar graphs when comparing different items.
The longest food chain in this food web includes nine groups of organisms. Which of the following groups is included in that food chain? birds; The longest food chain includes phytoplankton, copepods, krill, carnivorous plankton, fishes, squids, birds, leopard seals, and smaller toothed whales.
Answers
The group "birds" is included in the longest food chain, according to the provided information.
A food chain is a linear sequence of organisms where each organism is eaten by the next higher organism in the chain. The food web given includes several organisms that are interlinked through a complex series of feeding relationships. The longest food chain in this food web consists of nine groups of organisms.
The first group is phytoplankton, which is a primary producer and forms the basis of the food web. The second group is copepods, small crustaceans that feed on phytoplankton. The third group is krill, which is a small shrimp-like animal that feeds on copepods. The fourth group is carnivorous plankton, which are small predatory animals that feed on krill. The fifth group is fishes, which feed on carnivorous plankton. The sixth group is squids, which feed on fishes.
The seventh group is birds, which feed on squids. The eighth group is leopard seals, which are large predatory animals that feed on penguins and smaller seals. The ninth and final group is smaller toothed whales, which feed on leopard seals. Therefore, the group included in the longest food chain is birds.
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Which of these are examples of how bacteria are beneficial? (Select all that apply.)
1. They can cause disease.
2. They help us digest food.
3. They are used to add flavor to some foods.
4. They change milk into cheese.
Answers
Answer:
The bacteria in our bodies help degrade the food we eat, help make nutrients available to us and neutralize toxins, to name a few examples[8]; [9]; [10]. Also, the microbiota play an essential role in the defense against infections by protecting the colonized surfaces from invading pathogens.
Explanation:
hope this helps
1. They can cause disease.
2. They help us digest food.
3. They are used to add flavor to some foods.
4. They change milk into cheese.
Explanation:
answers.
2
3
4
HELPPPPPPPP!!!!!!!!!!!!!!
Answers
Answer
Heterozygous i think
Explanation:
Consider the following two statements about succession.
Student 1:
Matthew - As succession begins, communities tend to be dominated by mostly K-selected species. As succession continues, r-selected species tend to compete better and therefore become more and more common.
Student 2:
Iman - As succession begins, communities tend to be dominated by mostly r-selected species. As succession continues, K-selected species tend to compete better and therefore become more and more common.
Which student is correct?
a. Provide a rationale for your answer (2 marks)
b. Provide a specific example of succession which includes at least one example of an r-selected and one example of a K-selected species. (1 mark)
Note - No marks are earned by simply agreeing with either Matthew or Iman
Answers
The photo shows several Volvox, one of the simplest multicellular living things. Volvox have no tissue. What other three things do Volvox also likely lack?
A. Organs
B. Cells
C. Muscles
D Organ systems
Answers
Answer:
Muscles, organs, and organ systems
Explanation:
Ap*x
segmentation, a large eucoelum, and setae are terms associated with which animal phylum?
Answers
The terms segmentation, a large eucoelum, and setae are associated with the animal phylum Annelida.
Annelida is a phylum of animals that are segmented worms. These animals are found all over the world, in soil and marine environments. Annelids have several distinguishing features, such as a well-developed nervous system, a closed circulatory system, and a coelom that is divided into many segments.
Annelids are characterized by having a segmented body, a spacious body cavity called a eucoelom, and setae, which are small bristle-like structures used for movement and anchoring.
The phylum includes earthworms, leeches, and many marine species. Annelids possess well-defined segmentation, a large eucoelum, and setae, which are bristles that are made of chitin and are found on their body surface.
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what is the name of the monomer that makes up the two complementary chains of dna
Answers
The monomer that makes up the two complementary chains of DNA is called a nucleotide.
A nucleotide is the basic building block of nucleic acids, which include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). It is composed of three main components: a nitrogenous base, a sugar molecule, and a phosphate group.
Nitrogenous base: The nitrogenous base is a crucial component of a nucleotide and determines its type. There are four types of nitrogenous bases: adenine (A), thymine (T) (in DNA), uracil (U) (in RNA), cytosine (C), and guanine (G). In DNA, adenine pairs with thymine (A-T), and cytosine pairs with guanine (C-G). In RNA, adenine pairs with uracil (A-U), and cytosine pairs with guanine (C-G).
Sugar molecule: The sugar molecule in DNA is called deoxyribose, while in RNA, it is ribose. The sugar provides the backbone of the nucleic acid chain and connects the nitrogenous bases. The sugar molecule contains a carbon atom ring structure, with each carbon atom numbered from 1' to 5'. The phosphate group is attached to the 5' carbon of the sugar molecule.
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The net primary production of a pine forest on a lava flow on mount fuji is about 175,000kcal/m2/yr, and the plant respiration is estimated to be 115,000kcal/m2/yr. What is the total amount of energy transferred during photosynthesis for this ecosystem?.
Answers
The total amount of energy transferred during photosynthesis for this ecosystem equals 260,000 kcal/m2/yr.
In order to respond to this question, we must be aware of Energy gathered and transformed into chemical energy throughout photosynthesis is known as gross primary productivity (GPP). Net primary productivity (NPP) is the product of gross primary output and respiration rate.
Therefore, we must add NPP to the respiration rate in order to determine GPP. If, then
NPP = 165,000 kcal/m2 per year
R = 9.5 kcal/m2/year
NPP equals GPP - respiration
NPP equals GPP - respiration
NPP=GPP-Respiration
Therefore,
NPP + R, therefore GPP.
NPP+R= GPP
GPP is equal to 95,000 kcal/m2/yr plus 165,000 kcal/m2/yr.
GPP = 260 kcal/m2/year
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if 1 ml of an initial solution contains one million cells, how many cells would you expect in 1 ml of a 0.0001 dilution?
Answers
If 1 ml of an initial solution contains one million cells, you would expect to find 100 cells in 1 ml of a 0.0001 dilution.
A dilution of 0.0001 means that the initial solution has been diluted by a factor of 10,000. To calculate the expected number of cells in the diluted solution, you can simply divide the number of cells in the initial solution (1 million) by the dilution factor (10,000).
1,000,000 cells / 10,000 = 100 cells
Therefore, you would expect to find 100 cells in 1 ml of a 0.0001 dilution. It's important to note that this calculation assumes that the dilution is done accurately and thoroughly, without any loss or contamination of cells during the process.
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A female Komodo dragon (Varanus komodoensis) kept in isolation in a zoo had progeny. Each of the offspring had two identical copies of every gene in its genome. However, the offspring were not identical to one another. Based on your understanding of parthenogenesis and meiosis, generate a hypothesis to explain these observations.
Answers
The hypothesis is that the female Komodo dragon reproduced asexually through parthenogenesis, resulting in progeny with two identical copies of every gene in their genome, but still displaying differences due to other genetic factors. This explanation accounts for the observations mentioned in the question.
Based on the observations mentioned, we can generate a hypothesis to explain the situation. The female Komodo dragon in isolation in the zoo most likely underwent a type of asexual reproduction called parthenogenesis. In parthenogenesis, an unfertilized egg develops into an offspring without the need for a male contribution. This process can occur in certain species, including some reptiles.
In the case of the Komodo dragon, the female may have produced eggs through meiosis, a process where the genetic material is halved. However, during meiosis, the chromosomes can sometimes fail to separate properly, resulting in the offspring having two identical copies of each gene in their genome. This phenomenon is known as a "meiotic error" or "polyploidy."
Even though the offspring have identical copies of genes, they may still exhibit genetic variations due to other factors like genetic recombination or mutations that occurred during the process. Therefore, although the offspring share the same genes, they can still differ from one another.
In conclusion, the hypothesis is that the female Komodo dragon reproduced asexually through parthenogenesis, resulting in progeny with two identical copies of every gene in their genome, but still displaying differences due to other genetic factors. This explanation accounts for the observations mentioned in the question.
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Which of the following statements about leukemia is TRUE?A. Leukemia producestumors.B. Leukemia cells areconsidered malignant.C. Leukemia cells arebenign.D. Leukemiais not considered cancer.
Answers
The true statement about leukemia is Leukemia cells are considered malignant. The correct answer is option (B).
Leukemia is a type of cancer that affects the bone marrow and blood-forming tissues. It involves the uncontrolled proliferation of abnormal white blood cells, specifically in the bone marrow, leading to the interference of normal blood cell production. These abnormal cells are considered malignant because they exhibit unregulated growth, invade surrounding tissues, and have the potential to spread to other parts of the body.
Leukemia cells do not produce solid tumors like many other forms of cancer. Instead, they multiply within the bone marrow and circulate in the bloodstream, affecting the production and function of normal blood cells. This can lead to symptoms such as anemia, infections, and bleeding problems. Given the characteristics of uncontrolled growth, invasion, and the potential to spread, leukemia is indeed classified as a malignant form of cancer. Hence, option (B) is the correct answer.
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A possible explanation that can be tested by comparison with scientific evidence. A) control B) hypothesis C) constant D) dependent variable
Answers
Answer:
B
Explanation:
in summer squash, there are two pairs of alleles that determine fruit color. the two genes sort independently. two white-fruited plants are crossed. both parents are known to be heterozygous for both genes. the cross produces the following offspring: 20 green-fruited plants, 58 yellow-fruited plants, and 218 white-fruited plants. (a) based on the observed ratio, which common type of epistasis is operating here? that is, which kind of modified dihybrid ratio most closely fits these data? (b) list the four genotype classes in the offspring and give the corresponding phenotype of each. (c) if a doubly heterozygous white plant is crossed with a green plant, what phenotype ratio would you expect in the progeny?
Answers
Summer squash fruit color is determined by two pairs of independent alleles. The predicted ratio of phenotypes would be 1:2:1 for white, yellow, and green fruit in summer squash, given that the two genes determining fruit color sort independently.
Answer to the following questions are as follows:
(a) Based on the observed ratio of 20 green-fruited plants, 58 yellow-fruited plants, and 218 white-fruited plants, the most closely fitting modified dihybrid ratio is 9:3:4. This indicates that a recessive epistasis is operating here.
(b) The four genotype classes in the offspring and their corresponding phenotypes are:
1. AABB - White-fruited
2. AABb or AAbb - Yellow-fruited
3. aaBB or aaBb - Yellow-fruited
4. aabb - Green-fruited
(c) If a doubly heterozygous white plant (AaBb) is crossed with a green plant (aabb), the expected phenotype ratio in the progeny would be:
1. AaBb - White-fruited (1/4)
2. Aabb - Yellow-fruited (1/4)
3. aaBb - Yellow-fruited (1/4)
4. aabb - Green-fruited (1/4)
Thus, the expected phenotype ratio would be 1:2:1 (white: yellow: green).
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which two substances does the flavin cycle produce
Answers
In the Calvin cycle, NADPH and ATP formed in the light reactions lose their stored chemical energy to build glucose.
What was the purpose of the Multiple Use Sustainable Yield Act?
To create standard expectations for various types of land use
To require companies to find several uses for any land they occupy
To designate any land that is home to endangered species as protected
To make sure that all aspects of a land’s use are considered in its management
Answers
Answer:
On June 12, 1960, Congress passed the Multiple Use-Sustained Yield Act, designed to prevent the obliteration of national forests by logging and water reclamation projects.
Explanation:
Complete the table below showing the sequences of DNA, mRNA codons, tRNA anticodons and the amino acids. Remember the genetic code is based on mRNA codons. (il give you brain list if you answer all)
Answers
Answer:
1. TGG 2.TTC 3.ATA 4. ACC 5. AAG 6. CUA
Explanation:
7. UGG 8. GAU 9. AUA 10. phenylalanine 11. aspartate 12. isoleucine
During translation, tRNA adds the correct amino acid to the growing protein, following the mRNA codon sequence. Tryptophan, Lysine, Leucine, Tyrosine.
What is translation?Translation is the stage in protein synthesis that follows transcription, and occurs in the cytoplasm.
When mRNA leaves the nucleus and moves to the cytoplasm, it meets a free ribosome that is the primary structure for protein synthesis. Ribosomes are composed of two subunits of rRNA associated with different tRNA that carries amino acids.
The ribosome reads mRNA in the 5' to 3' direction, and, according to the codons that are being readen in mRNA, tRNA transfers the correct amino acids to build the polypeptide chain.
Let us remember that the codon is the sequence of three nucleotides present in mRNA. The molecule carriesa a start codon and stop codons.
Each tRNA has two important sites. One of them is the antidocon that couples with the codon of the mRNA molecule. The other site couples with the coded amino acid.
The protein is synthesized from the amino terminus to the carboxy terminus.
In the example,
DNA mRNA tRNA Amino Acid
ACC UGG ACC Tryptophan
TTC AAG UUC Lysine
GAT CUA GAU Leucine
ATA UAU AUA Tyrosine
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(c) Oxygen passes from the alveolus into the blood.
Name the part of the blood that carries the most oxygen.
Answers
Answer:
Undoubtedly, Red Blood Cells are the ones carrying the most oxygen.
While australopithecines may have used primitive tools, an increase in intelligence led to wide-scale tool use by the genus homo. Identify the statements that correctly describe homo habilis tool use.
Answers
A larger brain in Homo habilis indicates tool use might have been more important to their survival than in australopithecines. Homo habilis also relied more on tools than other early hominins did and used stone tools to get more meat in their diet.
What is Homo habilis?Homo habilis is an extinct species of archaic human from the Early Pleistocene of South and East Africa about 2.3 million years ago to 1.6 million years ago. Homo habilis, upon species description in 1964, was highly contested, with so many researchers recommending it be synonymised with Australopithecus africanus, which was the only other early hominin known at the time. However, as time went on and more relevant discoveries were made, Homo habilis received more recognition.
Homo habilis mainly used tools in butchering. Compared to australopithecines, early homo are generally thought to have consumed high quantities of meat.
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When do the results of a risk benefit analysis indicate that a technology should be used?
Answers
A risk-benefit analysis is a comparison between the risks and its benefits. They are used to check whether a course of action is worth taking or if the risks are too high.
Risk–benefit analysis is analysis that seeks to quantify the risk and benefits. Analyzing a risk can be massively reliant on the human factor. A certain level of risk in our lives is approved as necessary to achieve certain benefits.
This kind of analysis is most important in medical field it requires detail research for implication of any new technology . It is important to determine whether the risk or the benefit is more significant before taking action.
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construct an argument giving scientific reasons to compare the advantages and disadvantages of gene therapy over the use of drugs (i.e pharmacotherapy for the treatment of diseases)
Answers
Explanation:
advantages - more effective and therefore a higher chance of success. since a genome is usually produced prior to procedure, risks and allergic reactions can be reduced effectively. little to no side effects are noticed as a genome analysis is done before. often the problem can be solved from the root in gene therapy.
disadvantages - ethical issues as often people are not comfortable in genome analysis. can be too expensive as gene therapy requires advanced technology. in the case of using radioactive elements, it may lead to mutations that may be a bigger issue than the disease itself.
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What is the relationship between the atomic number and atomic mass of an element