The diagram below represents an impulse pathway.


Nerve gas interferes with the action of an enzyme that breaks down acetylcholine. This process allows the acetylcholine to remain in a synapse almost indefinitely. At which location does this inhibiting effect of the nerve gas occur?


A) A


B) B


C) D


D) C

Answer:

With less oxygen, the abnormal hemoglobin S gene can cause rigid, nonliquid protein strands to form within the red blood cell. These rigid strands can change the shape of the cell, causing the sickled red blood cell that gives the disease its name.

Answer:

B. Inheriting a specific gene

Explanation:

Sickle cell anemia is a genetic disorder whose gene likely originated in places where illnesses like malaria are common; the sickle cells help prevent people from getting sickened as bad in that case.

Have a good day!

Answer:

That's called a Waning Crescent.

Answer:

3rd one humans and Chimpanzees both evolved from a common ancestor

Answer:

plantae kingdom

Explanation:

plantae kingdom which consists of trees, bushes, vines, flowering plants, ferns and moss among other living organisms. Many plants are aqueous, meaning that they survive and thrive in water whether it be fresh or salt water.

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Answer:

plantae kingdom

Explanation:

Answer:

The wind  moves from regions of lower air temperature to regions of higher air temperature because of a pressure differential set up by the two air masses

Explanation:

Relationship between wind speed and direction to air temperature:

wind flows from regions of lower air temperature to regions of higher air temperature because of a pressure differential set up by the two air masses.

A.  The land air will heat up more during the day. This is because the land has a lower specific heat capacity than water, hence increases a lot more rapidly in temperature than the sea when the sun comes up.

B.  The air packet over the land will cool down more rapidly at night due to the lower specific heat capacity of land when compared to the sea.

Answer:

Species

Explanation:

Brainliest?

Answer:

The magma moved. The crystaline water is no longer being heated by the magma so it stops being a hot spring.

Answer:

The magma melts

Explanation:

Answer:

The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.

Explanation: The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.

Answer:

Explanation:The phospholipid bilayer formed by these interactions makes a good barrier between the interior and exterior of the cell, because water and other polar or charged substances cannot easily cross the hydrophobic core of the membrane. Can water cross the plasma membrane at all?

It also helps the cell move things in and out. The cell membrane is made of what is called a phospholipid bilayer, which means it has two layers of phospholipids. ... This allows the phosphates to be exposed to water, either in the cell or the environment, while the lipids are protected from water Lipids are essential for all life on Earth. They play many important roles in maintaining the health of an organism. Arguably the most important function lipids perform is as the building blocks of cellular membranes. Other functions include energy storage, insulation, cellular communication and protection.Large quantities of water molecules constantly move across cell membranes by simple diffusion, often facilitated by movement through membrane proteins, including aquaporins. In general, net movement of water into or out of cells is negligible.

Answer:

D. It has a clay liner unlike a normal dump

Answer: the chemical messages will impact the cells resulting in change to gene expression

Explanation:

The specific function of signal cells releasing chemical messages to nearby cells during early embryonic development is the chemical messages will impact the cells, resulting in a change in gene expression. The correct option is A.

The growth and formation of the human embryo are known as human embryonic development or human embryogenesis. It is distinguished by early developmental processes in the embryo, such as cell division and cellular differentiation.

The endoderm, mesoderm, and ectoderm are three germ layers that develop throughout this process, known as gastrulation. Different components of the organism will develop from the cells in these three levels.

Therefore, the correct option is A, The chemical messages will impact the cells, resulting in a change in gene expression.

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Answer:

c

Explanation:

During Precambrian time, The amount of oxygen increased in the earth's atmosphere. Therefore, option C is correct.

From roughly 4.6 billion years ago, when Earth first started to form, to the start of the Cambrian Period, 541 million years ago, is the Precambrian Period. It is the earliest era which is followed by the Cambrian period.

Large objects bombarded the Precambrian Earth, the crust was split into the first continents and ocean basins, crustal plates were mobilized, the atmosphere changed from reducing to oxidizing, and early life began and evolved. Climate and geologic events are responsible for the end of this period.

During this period, the amount of oxygen increased rapidly. Therefore, option C is correct.

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This is true

May nilbin be with you

Answer:

mantle maybe

..!°π°!..

Answer: D. The milk snake is selectively favored by mimicking the venomous coral snake.

Explanation: Good luck! :D

Answer:

D

Explanation:

Answer: No because each have an important impact on humans.

Explanation:

Answer:

basically, step 1 is the second row

step 2 is 3rd row

step 3 is 4th row

and step 4 is the 1st row

Explanation:

Answer:c

Explanation:

c

Embryology is used in evolution because similar structures often also exhibit a common evolutionary origin.

In conclusion, embryology is used in evolution because similar structures often also exhibit a common evolutionary origin.

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Answer:

EU genes enclosed in nuclei, contain organelles,

BOth rigid cell wall, bacteria, divide by mitosis

Pro genes float fee in cytoplasm

Explanation:

Answer:

Stabilizing selection is a type of natural selection in which the population mean stabilizes on a particular non-extreme trait value.

directional selection is a mode of natural selection is  an extreme phenotype is favored over other phenotypes.

Disruptive selection describes changes in population genetics in which extreme values for a trait are favored over intermediate values.

Answer:

The Washington-Oregon coastline of the United States is an example of this type of convergent plate boundary.

The organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option. The cell membrane is the outer protective layer of the cell that does this function.

The cell membrane is the membrane that acts as the selective barrier for the cell, and through it, substances can enter and exit the cell. When energy is spent for the molecule to move, it is referred to as active transport; when it is not spent, it is referred to as passive transport.

Both eukaryotes and prokaryotes, as well as fungi, have different cell membrane compositions; some have more lipid content, some have less, some have cholesterol, and some don't. The lipids and proteins are arranged in such a way as to maintain cell homeostasis.

Hence, the organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option.

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Answer:

The correct answer is - A patient's own tissue - an autograft and tissue from another person - an Allograft.

Explanation:

If the bone or the tissue is transferred from one point of the body to another point of the same person's body, this is called an autograft and is also thought of as "gold standard". It has a low level of risk in comparison to other grafts. It is used for surgical reconstruction.

An allograft is the transfer of the tissues or bone of an individual to the body of another individual of the same species during the surgical process. This type of graft has some risk of compatiblity.

Answer: Lipid production occurs at slower rate.

Explanation:

The ethanol or ethyl alcohol is a hepatotoxic which involves the redox changes in the NADH that results due to the oxidation of the alcohol dehydrogenase enzyme. It affects the metabolism of the lipids, amino acids, carbohydrates and proteins in the body. As the liver cells get engaged in metabolism of regular alcohol or barbiturate. The liver cells get damaged in this process. The ethanol is metabolized into acetaldehyde. So, the lipid production as a metabolite occurs at a slower rate.

Answer: c

Explanation:

Answer: a heritable characteristic that helps an organism survive and reproduce

Explanation:

In an environment with stable availability of resources, the population can still grow because there are enough resources for this population to survive. Option B.  The species' population can be expected to increase.

This question is related to growth models.

A growing population that inhabits a limited space is gradually affected by density, rebounding in the multiplication rate.

The population growth per capita rate decreases as population size increases.

The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.

Carrying capacity refers to the maximum point at which the environment can support a growing population.

K is a constant. It coincides with the population size when natality rate and mortality rate are equal to each other. This is the equilibrium point.

• If the population size, N, is inferior to K (N<K), the population can still grow.

• When N approximates to K, the population´s growth speed decreases.

• When N=K, the population reaches equilibrium,

• When N is superior to K (N>K), the population must decrease in size because there are not enough resources to maintain that size.

So when the population size exceeds K, carrying capacity makes the population decrease in size.

But if there is a constant availability of resources, the population can still grow because there are enough resources for this population to survive. In this situation, N<K.

When resources are stable over a long period of time, a species' population can be expected to INCREASE. Option B.

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Answer:

The answer is A, Volume increases and density decreases

Explanation:

When water is cooled from 4°C to 0°C, the volume of water increases and density decreases. Thus, the correct option is A.

The density of water may be defined as the weight of the water per unit volume, which depends on the temperature of the water. The normal density of water is 997 kg/m³.

When the temperature of liquid goes down, the density of its gradually decreases, as a result of this, the volume considerably increases.

Therefore, the correct option for this question is A.

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Answer:

kj

Explanation:

uhhhhhh i think the answer is 2+-43

Explanation:

it arrises from the nucleus. that is why most of the eukaryotic cells have endoplasmic reticulum. The membranes of the ER are continuous with the outer nuclear membrane