Help PLZ Which of the two largest cavities forms earliest in fetal development? Why do you think that cavity, and its contents, develops before other body parts?

Thirst is the sensation or desire to drink fluids, usually water, in response to the body's need for hydration. Thirst is regulated by a complex system involving various physiological mechanisms, including the osmoreceptors in the hypothalamus of the brain. Option c is correct.

When the osmotic pressure of the blood increases, indicating a higher concentration of solutes such as salt, it can trigger the osmoreceptors in the hypothalamus to signal the sensation of thirst. This is a mechanism to maintain the body's water balance and prevent dehydration. Option c, "increased osmotic pressure of the blood stimulates the hypothalamus," accurately describes the physiological trigger for thirst.

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Answer:

C.Bacteria

Explanation:

The organism that breaks down dead materials are decomposers, ofc lion and vulture arent decomposers. Algae also a producer and not a decomposer. So the only answer is bacteria, bacteria is a small organism that eat and decompose dead things :)

The organism that breaks down dead material and returns the substances to the environment is BACTERIA, which is option C.

BACTERIA especially those that lives in soil are saprophytic in nature. This means that they feed on dead decaying organisms and their excreta (wastes such as urine and faeces) and bring about their decay or decomposition. This occurs through the following'

• they secrete enzymes onto their food source such as a decaying leaf,

• these enzymes break down complex compounds like carbohydrates and proteins into simple inorganic compounds.

• a lot of chemical energy is lost as unusable heat energy.

• the decomposers (bacteria) only absorb a small amount of nutrients and energy for their use

• the rest is then released into the soil, air and water.

Therefore, the organism that breaks down dead material and returns the substances to the environment is BACTERIA.

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Answer:

I'm pretty confident it's Mars and Jupiter

Explanation:

I think it's 4 plants before and after the belt, and using the phrase "My Very Educated Mother Just Served Us Nachos", Mother and Just are Mars and Jupiter, so I think it's right

Answer: Your answer is A. Mars and Jupiter

Explanation: The order of the planets are Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune and in between Mars and jupiter is the asteroid belt. Also I really like outer space and I want to be an astronaut when I grow up so I'm learning a lot about space. :P

Hope it helped :D

Answer:

oxygen

Explanation:

oxygen gets diffused from the air sacs (aka alveoli) and into the cappilaries.

For an individual who is heterozygous for two genes, aa and bb, independent assortment predicts that there will be four possible combinations of alleles that can be passed on to their offspring.

These combinations are AA, Aa, aA, and aa. Independent assortment is the process by which different pairs of alleles are passed on to offspring independently of each other. This is due to the random alignment of homologous chromosomes during meiosis I, which leads to different combinations of alleles in the gametes.

For example, if an individual is heterozygous for the genes A and B, then they have the genotype AaBb. During meiosis, the A and B alleles on homologous chromosomes can align in different ways and end up in different gametes. As a result, the offspring can inherit different combinations of alleles, such as AB, Ab, aB, or ab. This leads to genetic diversity among the offspring, which is a fundamental aspect of the process of evolution.

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Answer:

Bio means "life." It's a Greek root word for many vocabulary words such as biology (bio = life, logy = study, hence the study of life) and biography (bio = life, graphy = writing).

Answer: B Cell growth  brainliest?

Explanation:

Answer:

depends on your grade

Explanation:

1.if u are a junior grader then a periscope will be great

2.for middle graders try making a vacuum cleaner with a plastic bottle

3.for high schoolers try something good and unique like a remote control car or u can also make one sonar just (a distance calculator of any object within 30cm of its reach) which i made in my high school science fair(for these projects learn arduino programming language)

or maybe try to think of something out of the box or ask other peoples

The DNA of the child will be a combination of the DNA from the parents, with some small variations due to recombination during the formation of the egg and sperm. These differences arise due to a process called recombination.

In Recombination, DNA is exchanged between the chromosomes of the parents. This exchange results in the child having a unique set of genes that are a combination of both parents' genes.

The uncut DNA in the child differs from that of the parents because it is a combination of the DNA from both parents. During fertilization, the sperm and egg cells each contribute half of their DNA to the child. This means that the child will have some DNA from the mother and some DNA from the father, creating a unique genetic makeup that is different from both parents.

Additionally, small mutations can occur during DNA replication that can lead to slight differences in the child's DNA compared to the parents. Overall, the uncut DNA in the child is a combination of both parents' DNA with the potential for small genetic variations.

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Until equilibrium is reached or all of the substrate has been eaten, the amount of product will continue to increase.

It is possible to identify enzyme catalysis by measuring the appearance of the product or the disappearance of the reactants. The same reactants may be used in a reaction, but a different catalyst may produce different results.

The more the temperature rises, the more crashes occur. As a reactant's concentration rises, the likelihood of reactant collisions increases as well, accelerating the rate of the reaction.

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Answer:

myelinating Schwann cells

Explanation:

In the peripheral nervous system, saltatory conduction is made possible by a series of morphologically and molecularly distinct subdomains in both axons and their associated myelinating Schwann cells.

Answer:

Explanation:

electron microscope

Answer: a

Explanation:

Answer:

How old is she?

Explanation:

Answer:

bet

Explanation:

whats her name?

When evolutionary stasis is observed, there is not a single explanation that accounts for it.

Evolutionary stasis is a phenomenon that is characterized by the lack of phenotypic evolution in a lineage over a certain period of time. This can be observed in the fossil record and through genetic analyses of extant organisms. There are many factors that can contribute to evolutionary stasis, including stabilizing selection, genetic drift, and developmental constraints. Stabilizing selection occurs when the average phenotype of a population is favored, and extreme phenotypes are selected against.

This can lead to the fixation of alleles in a population, which can contribute to evolutionary stasis. Developmental constraints occur when developmental pathways limit the range of possible phenotypic variation in a lineage. For example, the mammalian body plan is constrained by the four-limbed tetrapod ancestor. In conclusion, there is not a single explanation that accounts for evolutionary stasis. Rather, it is the result of a complex interplay of genetic, developmental, and ecological factors.

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The key difference between thrift genotype hypothesis and the thrifty phenotype hypothesis is when specific populations have genes that were historically beneficial, that enable efficient storage of fat during times of food scarcity or in feast to compensate for times of famine.

Thrifty phenotype hypothesis states that the epidemiological associations occurs between poor fetal and infant growth and the consequent development of type 2 diabetes and many disease result from the cause of poor nutrition in early life, that  produces long lasting changes in glucose-insulin metabolism.

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As parent's genotypes are missing here, alleles cannot be estimated in offspring, but it is possible to use the example above to estimate it.

A Punnett square is a diagram used in genetics to estimate genotypic and phenotypic frequencies in offspring from a given genetic cross.

In order to estimate offspring allele frequencies, we need to know parental genotypes by means of a Punnett square.

For example, if both parents are heterozygous for a gene whose alleles are called 'A' and 'a', the Punnett square in offspring is:

        A         a

A     AA      Aa

a     Aa       aa

In this case, 50% of offspring will be heterozygous (genotype 1/2 Aa), whereas 25% will be homo-zygous dominant (1/4 AA) and 25% will be homo-zygous recessive (1/4 aa).

In conclusion, as parent's genotypes are missing here, thereby alleles cannot be estimated in offspring, but you can use the example above to estimate it.

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If the allele pairs assort independently, the probability that any individual offspring will have the genotype aabbccddee would be 100% or 1 out of 1.

Since the alleles assort independently, the gametes from each genotype will all be abcde.

Crossing abcde and abcde:

                        abcde    x    abcde

                              aabbccddee

This means that all the progeny from the cross will be aabbccddee giving a 100% chance.

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The original parents aren't affected, but several children are affected. this could happen only if the trait were recessive.

At a specific genomic region, an allele is one of two or more variations of the DNA sequence (a single base or a segment of nucleotides). For each genomic region with such variation, an individual inherits two alleles, one from each parent. The person is homozygous for the allele if the two alleles are the same.

Recessive alleles is a particular allele that, when present alone, has no effect on the person. The expression of the trait requires the presence of two copies of the allele. And are mostly appears in offsprings.

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Option 3) Retinal ganglion cells get excitatory contribution from On or Off bipolar inside their dendritic field.

As needs be, On ganglion cells are energized by an increment of enlightenment in the open field community, and Off ganglion cells by a decline. The retina is a light-delicate surface at the rear of the eye that comprises of neurons and photoreceptor cells.

At the point when light hits the retina (a light-delicate layer of tissue at the rear of the eye), unique cells called photoreceptors transform the light into electrical signs. These electrical signs travel from the retina through the optic nerve to the mind. Then the mind transforms the signs into the pictures we see.

Optic nerve strands from the eyes end at two bodies in the thalamus (a design in the brain) known as the Lateral Geniculate Nuclei (LGN ). One LGN lies in the left half of the globe and different lies in the right side of the hemisphere.

Layer 4 neurons in primary visual cortex (V1) get by far most of the contributions from the horizontal geniculate core (LGN) and assume a basic part in creating the visual reactions of layer 2/3 neurons.

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Full Question: if you are recording from a cell that decreases its firing rate when you add light equally over the entire receptive field, where is this cell likely located? group of answer choices

Answer:

Question 13:

B. False

The most abundant photoreceptors that detect dim light are Rods, not Cones. Rods are highly sensitive to low light conditions and are responsible for vision in dim light and peripheral vision. Cones, on the other hand, are responsible for color vision and high visual acuity but are less sensitive to low light conditions.

Question 14:

A. True

The iris is the muscular tissue in the eye that adjusts the size of the pupil, controlling the amount of light entering the eye. It contracts or expands to regulate the size of the pupil in response to changing light conditions.

Question 15:

B. False

Opsins are visual pigments found in photoreceptor cells, specifically in the retina of the eye. They are responsible for capturing light and initiating the process of vision. Opsins are not derived from Vitamin D. Vitamin D is a separate compound involved in various physiological processes in the body, including calcium absorption and bone health.

Explanation:

Animal poisons work on the cell membrane by causing reaction with it which damages the structure of the cell membrane.

The structures of poisons are not similar to those chemicals that are essential to cells. Very few poisons are absorbed by active transport when a toxic level of the chemical is collected in the cells of the specific tissue or organ, which results in the disrupts of the cell from its normal structure or function. Symptoms of poisonous chemicals then develop, and, if the toxicity is severe , death may occur. Diffusion, facilitated diffusion, active transport are the types of chemical transport systems through cell membranes. Lipophilic is a nonpolar chemicals that dissolve in the lipid bilayer.

So we can conclude that animal poisons are neurotoxic that cause actions on the cell membrane.

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