Hormones are chemicals that are conveyed by the blood to other organs, whose activity it influences, option (d) is correct.
Hormones are chemical messengers produced by various glands and tissues in the body. They are released into the bloodstream and carried to target organs or tissues, where they exert their effects. The endocrine system, which consists of glands such as the pituitary, thyroid, adrenal, and reproductive glands, secretes hormones that regulate various bodily functions.
These hormones travel through the blood, reaching distant organs or tissues and influencing their activity. Hormones can have a wide range of effects, including regulating metabolism, growth and development, reproduction, and maintaining homeostasis. They act by binding to specific receptors on target cells and initiating a cascade of signaling events, option (d) is correct.
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1. according to the punnett square, what were the chances that emma would be heterozygous/carrier?
The Punnett Square charted out the chances that Emma would be heterozygous or a carrier as 25%. In order to analyze this, it is important to understand how the Punnett Square works.
The Punnett Square utilizes genetic information from two different parents or sources in order to predict the possible offspring outcomes. It organizes and arranges each allele in different combinations, with the most common allele at the top of each box in a square. In this specific Punnett Square, the topalleles for each parent involved were S and s with the dominant-allele S being used for this example.
As such, the square reveals that for each of the four possible gamete combinations among the parents, there is one potential offspring result Combo-A which is composed of both dominant-alleles (SS) and one potential offspring result Combo-B which is composed of both recessive-alleles (ss). Finally, there is one potential offspring result Combo-C which is composed of both heterozygous-alleles (Ss).
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adenoviruses are a family of highly contagious viruses that most commonly cause illnesses of the respiratory system, such as bronchitis or pneumonia. in the first phase of an adenovirus infection, the host cell expresses several viral proteins. one of these proteins, e1b-55k, inhibits the activity of the host protein p53, a tumor suppressor that arrests the cell cycle or induces apoptosis when dna damage is detected. which of the following claims is best supported by the information above?
The majority of adenovirus infections result in the common cold and other minor respiratory illnesses.
A number of ailments, including bronchitis (an inflammation of the windpipe and major airways), pneumonia (an inflammation of the lungs), skin rashes, conjunctivitis (pink eye), bladder infections, and bowel infections, can be brought on by certain infections.
Adenovirus type 5 (Ad5early )'s region 1B (E1B) encodes at least five distinct polypeptides that are created by alternative splicing of a single mRNA precursor.
E1B-19K and E1B-55K, two of these gene products, both have the ability to work with the Ad5 E1A proteins to totally convert rodent cells in culture. Strong evidence points to the two E1B proteins' ability to combat growth arrest and apoptosis, which both inhibit cell transformation.
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How are tumor cells different from normal cells? a. tumor cells use meiosis to replicate b. tumor cells are haploid and other cells are diploid c. there are no chromosomes in tumor cells d. mitosis is not regulated in tumor cells
Answer:
d. mitosis is not regulated in tumor cells
Explanation:
Cancer cells are cancer because they have unregulated/ uncontrolled growth, and this happens when we have unregulated mitosis (which is cell growth/division)
Answer:
D
Explanation:
Cancer cells have more genetic changes compared to normal cells, it may be a result in cancer, but not all changes cause cancer.
What are the steriod hormens?
if im dead did i die give me the correct answer for brainliest
Well duh bahahhhahaahaha
Echinoderms lack a head and brain, but still have a simple ___________ system.circulatorynervousrespiratorydigestivereproductive
Echinoderms presents a circumoral nerve ring that is connected to five radial nerve cords running between the circular and longitudinal muscles thorughout the body. So, even withouh a head and a brain, it is considered that they have a simple nervous system. Therefore, the correct answer is NERVOUS.
please answer asap
A hardiness zone with a higher number can be expected to be
A.
cooler.
B.
warmer.
C.
drier.
D.
wetter.
and
A dicot’s roots
A.
can grow from a radicle or be adventitious.
B.
are adventitious.
C.
grow from a radicle.
D.
grow in a scattered, random pattern.
Answer: A: cooler and the second one is C: grow from a radicle
Explanation: TRUST ME
What is the desertification of the sahara? question 14 options: the expansion of the sahara desert the study of the sahara desert the shrinking of the sahara desert the population of the sahara desert
Desertification is the change of a normal land in desert. The expansion of the Sahara desert refers to the desertification of the Sahara.
What is Sahara desert?Sahara desert is in Morocco. It is famous for its variety of land features but is most famous because of sand dune fields.
Desertification can leads to the reduction of the vegetation-covered area. The Sahara desert also is constantly expanding at a faster rate.
The cause of Sahara desertification includes both natural processes such as climate and human activities.
Thus the correct option is A.
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Fat and ATP are different molocules that can both be described as molocules in terms of energy storage.
This is a question from flvs and the awnsers are to long to type
in what ways are plants and animals dependent on eachother?
Answer:
Animals like herbivores and omnivores depend on plants for their food
Plants depend on animals
Plants also provide shelter for animals
They make oxygen for the animals to live.
When animals are dead the slowly decompose to form a natural manure
for the plants
Animals breath out carbon dioxide which is needed for plant for the process of photosynthesis
hope it helps <3
Which of these provides an example of molecules moving by facilitated diffusion?
A)
Water.diffuses across the phospholipid bilayer with the gradient.
B)
Na moves through a membrane protein against the gradient to the
cytoplasm.
C)
O, moves from high concentration outside the blood cell to low
concentration inside the blood cell
Glucose moves from high concentration in the blood to lower
concentration in the cell using a membrane protein.
Answer:D
Explanation:
The movement of Na through a membrane protein against the gradient to the cytoplasm would be a good example of facilitated diffusion.
What is facilitated diffusion?It is the diffusion of substances against their concentration gradients with the assistance of carrier molecules.
In other words, it is the movement of substances from their region of lower concentration to their region of higher concentration.
Thus, the movement of Na through a membrane protein against its own concentration gradient is an example of facilitated diffusion.
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what is removed from dntps to provide the energy required for dna polymerase to catalyze dna strand elongation?
During DNA replication, the nucleotides that are incorporated into the growing DNA strand are in form of deoxyribonucleoside triphosphates (dNTPs), which provide the energy required for DNA polymerase to catalyze elongation of the DNA strand.
In order for the energy to be released, two phosphate groups must be cleaved from the dNTP molecule, leaving a single phosphate group and a deoxyribonucleoside monophosphate (dNMP). This hydrolysis reaction releases a significant amount of energy, which is harnessed by the polymerase enzyme to catalyze the formation of phosphodiester bonds that link nucleotides together into a new DNA strand. The released phosphate groups are also important because they can be used to form the high-energy bonds required for cellular processes such as ATP synthesis.
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1. Complete the Punnett square for a cross between a homozygous red-flowered snapdragon (RR) and a
homozygous white-flowered snapdragon (R'R'). Give the genotype and phenotype of the offspring in
the F₁ generation.
Key
RR - red
R'R' - white
RR' - pink
F₁
8
genotype:
phenotype:
A group of students wants to study the structures of animals in the desert. One question they should ask is-
How long do the animals live?
Can you buy the animals in pet stores?
How do the animals satisfy their need for water?
How many offspring do the animals have?
From studies and research, I believe the proper question would be:
"How do the animals satisfy their need for water?" or "How long do the animals live?"
Explanation 1:
When studying the desert, asking "Can you buy the animals in pet stores?" is not going to help you find information about the desert because it is not a question to get information about the desert, only information if you just buy it at your local pet shop.
Explanation 2:
Asking "How many offspring do the animals have?" does help us learn about animals, but we are trying to find information on the structure of the desert in which the animals live in. We are not looking for how many children the animals will have because it doesn't fully relate to the question we would be asking.
Side Note: Offsprings mean children.
Hope this helps!
~Hocus Pocus
5. One reason that viruses are harmful to living cells and classified as pathogens is that they-
A cause organisms to produce daughter cells through the process of mitosis
B stimulate the production of ATP in mitochondria within host cells
C damage the cells used in the production of new virus particles
Dreduce the amount of cholesterol in the blood of people with heart disease
Meiosis results in cells.
Each of these cells contains chromosomes.
Explanation:
meiosis cell are parent cell
A cell undergoing meiosis experiences a problem with its microtubules, such that proper separation of the paired chromosomes carrying alleles q and q does not occur during anaphase i. What is the most likely effect on the four daughter cells?.
All four daughter cells have a complete set of chromosomes, but two daughter cells have an extra chromosome containing the Q or q allele while the other two daughter cells lack the gene containing Q or q allele.
What are microtubules?Microtubules are polymers of tubulin that form part of the cytoskeleton and provide structure and shape to eukaryotic cells. Microtubules are up to 50 microns long, 23–27 nm wide, and 11–15 nm internal diameter.
Microtubules are important for the development and maintenance of axons and dendrites. Microtubules are vulnerable in various neurodegenerative diseases. Dysfunctional microtubules are at the reason of neurodegeneration and injury. Microtubules go through complex modifications and protein-protein interactions.
Microtubules are involved in a variety of functions, including mitotic spindle assembly in dividing cells and axonal elongation in neurons.
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Differences in traits can occur from both genetic and environmental factors.
True
False
True. Both genetic and environmental factors can contribute to differences in traits
Which type of electromagnetic wave has the lowest frequency?
A. Ultraviolet
B. Visible light
C. Gamma rays
D. Microwaves
Answer:
D
Explanation:
If unicellular organism swims from a hypertonic to an isotonic environment, will its contractile vacuole becomes more or less active? (4)
If a unicellular organism swims from a hypertonic to an isotonic environment, its contractile vacuole will likely become less active.
The contractile vacuole is an organelle that helps regulate water balance in single-celled organisms by expelling excess water. In a hypertonic environment, where the concentration of solutes outside the cell is higher than inside, water will move out of the cell through osmosis, causing the cell to lose water and shrink. In response, the contractile vacuole will pump more vigorously to expel the excess water and prevent the cell from dehydrating. However, in an isotonic environment where the solute concentration is equal inside and outside the cell, there is no net movement of water. As a result, the cell will not need to pump out excess water as frequently, and the contractile vacuole may become less active or even stop functioning altogether. Therefore, the activity of the contractile vacuole will depend on the environmental conditions and the need to maintain water balance within the cell.
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Which of the following is characterized by a degree of genetic regeneration although it's resulted from asexual reproduction?
a)Bread mould fungus
b)Amoebae
c)Drone of honey bee
d)Carrot plant
Answer:
b)Amoebae
Explanation:Characterized by a degree of genetic regeneration
name the acid present in ant sting
Answer:
Ant sting release methanoic acid or formic acid. The chemical formula of methanoic acid is HCOOH
\(\qquad \qquad\huge \underline{\boxed{\sf Answer}}\)
The acid present in ant sting is Formic acid ( also known as Methanoic acid )
Based on your data, IDENTIFY a location on the Earth's surface where you would expect the air
to be constantly expanding and rising, regardless of the time of year, and EXPLAIN your
reasoning (Reminder: higher temp air has a low density, so it rises)
The seasonal variations in surface temperature are greater in mid-latitude temperate regions than in polar or tropical locations, with a change from summer to winter of 8 to 15 degrees Celsius in temperate zones compared to only 2 degrees Celsius in these regions.
What is Temperature?Oceans typically have temperatures from -2 to 30 degrees Celsius (28-86o F). The surface water at low latitudes has a tendency to be warmer than that at the poles, which is understandable given how much colder it is there. Remember that the water in the ocean basins is colder on the eastern side than the western side at equal latitudes. The majority of the ocean's water is deeper and cooler, despite the fact that its surface water can be fairly warm. As a result, the average ocean temperature is about 4o C, or roughly the same as the air inside your refrigerator.An average temperature range for mid-latitude, open ocean water. Considering that the sun's rays can only reach depths of less than 1000 m, water is warmed most by the sun at the surface (section 6.5). The surface water stays at the surface where it can be warmed even further because it is less dense due to its warmer temperature than the deep water. The upper 100-200 m, or so-called mixed layer, has a temperature that is largely constant. Surface breezes, waves, and currents combine the upper water to create the mixed layer, which then evenly disperses heat. A rapid temperature drop over a relatively small depth increase is present beneath the mixed layer.The thermocline refers to this. Deep ocean temperatures below the thermocline are pretty stable at around 2° C all the way to the bottom. One of the most thermally stable places on earth, the deep ocean experiences little temperature variation since it is located distant from major heat sources.To Learn more About temperature refer To:
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Which microfossils are useful for paleotemperature determination
using the oxygen isotope ratios of their shells?
The microfossils that are useful for paleotemperature determination using the oxygen isotope ratios of their shells are foraminifera.
Foraminifera are tiny marine animals that have been living for millions of years. Their shells are made up of calcium carbonate and are well-preserved in sediments. The shells of these microorganisms are widely used in paleoceanography to determine past climatic conditions. Paleoceanography is the study of the history of the oceans in the geological past using sediments and fossils. It helps us to understand how the oceans and climate have changed over time.
Paleotemperature is the measure of the temperature that existed in past geological ages. The temperature is determined by various means, including studying the growth rings of trees, ice cores, and microfossils, and others. Microfossils are microscopic fossils that are found in rocks and sediments that help in reconstructing past environmental and climatic conditions.
Oxygen isotope ratio is the measure of the relative abundance of oxygen isotopes 18O and 16O in a sample. The ratio of the two isotopes changes as a result of temperature changes. The ratio is used to reconstruct past temperature changes.
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What blood types are possible if mom is heterozygous a and dad is heterozygous b?.
The possible blood type if mom has heterozygous A and Dad has heterozygous B is AB or A or B or O.
Blood typeIn terms of the presence or absence of certain antigens, there are four types of blood types. Blood types A, B, AB, and O.
Heterozygous, as related to genetics, refers to having inherited different versions (alleles).
The heterozygous A means the genotype is \(I^{a} I^{o}\) and the heterozygous B means has the genotype \(I^{b} I^{o}\)
If both genotypes are crossed, the possible genotype that would be inherited to the offspring is as follow :
\(I^{a}\), \(I^{o}\) x \(I^{b}\), \(I^{o}\)
\(I^{a} I^{b}\), \(I^{a} I^{o}\), \(I^{b} I^{o}\), \(I^{o} I^{o}\)
Here is the expression (phenotype) of each genotype would be :
\(I^{a} I^{b}\) = blood type AB
\(I^{a} I^{o}\) = blood type A
\(I^{b} I^{o}\) = blood type B
\(I^{o} I^{o}\) = blood type O
Thus, if mom has heterozygous A and dad has heterozygous B, the offspring could have blood type AB or A or B, or O.
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A tiny filter-feeding barnacle sticks to a whale. The whale is unaffected by this new stowaway. What type of relationship is this?
Answer:
Commensalism
Explanation:
Scientists want to order the prey found in the flounder stomachs by percent weight. Of the six types of prey found in the stomachs, based on Table 1, which prey would be the third largest? A. Hydrozoa B. Polychaeta C. Crustacea D. Mollusca
Arranging the prey items in descending order of percent weight, we get:
FishAmphipodaCrustaceaMolluscaPolychaetaHydrozoaWhat are the prey?To find the third largest prey found in the flounder stomachs in terms of percent weight, we need to examine the information given in Table 1, which lists the six types of prey found in the stomachs and their corresponding percent weight.
Based on the information given in Table 1, to determine the third largest prey found in the flounder stomachs in terms of percent weight, we need to look at the column "Percent Weight" and arrange the prey items in descending order.
Therefore, the third largest prey found in the flounder stomachs in terms of percent weight is C. Crustacea.
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Light Dependent Reaction
Which atom do you think each electron came from?
Answer:
The light-dependent reaction is referred to as a redox reaction as substances both lose and gain electrons, hydrogen, and oxygen in the process. When a substance loses electrons, loses hydrogen, or gains oxygen, it is called oxidation. When a substance gains electrons, gains hydrogen, or loses oxygen, it is referred to as reduction.
Explanation:
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Which of the following is a function of the cell membrane?
A. stores water, salt, proteins, and carbohydrates
B. helps maintain homeostasis by keeping the cell wall in place.
C. breaks down lipids, carbohydrates, and proteins from foods.
D. helps maintain homeostasis as materials enter and leave the cell
The sides of the DNA ladder consist of alternating______ and phosphates
Answer:
sugar
Explanation:
The sides of the stepping stool are made of rotating sugar and phosphate particles. The sugar is deoxyribose. The rungs of the stepping stool are sets of 4 sorts of nitrogen bases. Two of the bases are purines-adenine and guanine.