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2 years ago

As filtrate moves through the ______________in mammals, it generally undergoes a dramatic decrease in osmolarity.

1 answer:

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As filtrate moves through the Ascending segment of the loop of Henle in mammals, it generally undergoes a dramatic decrease in osmolarity.

The ascending limb of the loop of henle is direct continuation from descending limb of henle, one of the structure in the nephron of the kidney.This segment of ascending limb has thin and thick segment.

The descending loop leads to sharp bend, in which ascending loop continues.This loop has thin and thick portion. Thick ascending limb is called distal straight tube. Thin-segment is permeable to ions and impermeable water.25% of sodium and potassium is absorb by the wall of ascending limb of the loop of henle.

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Draw and label the parts of the eye. State the function of any five parts of the eye.

Sidana [21]

Answer:

The labeled drawing is attached; I just grabbed an image off of the internet. You can do this by hand by just copying what's in your textbook or other reference materials. Let me define five main parts:

Retina. This is a thin layer of tissue on the back of the eye that receives the signals of light and transfers them to the brain so you can understand them as color and sight.
Cornea. This is the front part, a reflective layer that "refracts" light. What this means is that light doesn't go directly through it, but its path is almost deflected a little.
Sclera. This is the part that looks white from the front. It's a protein covering to your eye, and it's very close to the cornea.
Iris. This is the actually colored part of your eye. If you have hazel or blue eyes, the iris is that portion of the eye. It allows differing amounts of light in.
Pupil. This is the black part of the eye. It's a hole that looks black because of all the light coming through and being absorbed.

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3 years ago

Which describes a pathway that tends to slow down a process?

vlada-n [284]

A pathway that tends to slow down a process is called a negative feedback loop.

<h3>What we know about these loops. </h3>

These loops function to reduce the rate a which a process occurs.
Being a feedback loop means that they take in stimuli from the environment of the cell in order to affect the rate of production of a compound.
A negative feedback loop will activate when the concentration of the compound being produced is too high.
In response, the negative loop will reduce the rate of production temporarily.

Therefore, we can confirm that a pathway that tends to slow down a process is called a negative feedback loop.

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4 0

2 years ago

Describe how cancer cells are different from other cells. Based on that, explain why cancer is so hard to cure.

Juli2301 [7.4K]

Cancer cells are cells that basically bypass any sort of regulatory processes in the cell cycle (and mitosis - the splitting of the cell). This leads to uncontrollable cell growth/duplication which hence leads to more and more cancerous cells. Cancer itself is so hard to cure for a couple of different reasons. If the cells are in the form of a benign tumor, that is a tumor that does not spread from its original infected tissue, it should be "easy" to remove with surgery. However, if it metastasizes, or spreads into surrounding tissues through the lymph or blood systems, then it becomes even harder to remove because of its far reach and complex structure. Also, cancer cells can be simply described as normal body cells that have gone rogue. That being said, things such as antibiotics, that are designed to get rid of foreign bodies, cannot get rid of cancerous cells without getting rid of most of your regular body cells as well simply because they cannot tell the difference.

Hope this helps :)

5 0

3 years ago

How do the functions of the skeletal and muscular system differ? A. Muscles provide structure and support to the body, while bon

Yuki888 [10]

Answer:

B. Bones provide structure and support to the body, while muscles move the bones.

Explanation:

Let's try to eliminate choices.

A: "Muscles provide structure and support to the body, while bones move the muscles."

Muscles actually aren't the ones that provide support for our body; it's the bones and our skeletons that do that. So, this is wrong.

B: "Bones provide structure and support to the body, while muscles move the bones."

Bones do, in fact, provide structure to our bodies, and muscles are the ones that attach to the bones through tendons and help move them. So, B is correct.

C: "Bones send signals to the body, and muscles are responsible for movement."

While it's true that muscles are responsible for movement, bones do not send signals to the body; that's the nervous system's job. C is wrong.

D: "Muscles send signals to the body, and bones are responsible for movement."

Again, muscles don't send signals; neurons do. D is wrong.

The answer is B.

4 0

3 years ago

Match each brachial spinal nerve with the correct label.

Stels [109]

Answer:

yes those are the correct answers labeled.

Explanation: post protected

8 0

2 years ago