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Inessa05 [86]
3 years ago
15

A human red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in the thumb. from this point in t

he artery, how many capillary beds must this red blood cell pass through before it returns to the left ventricle of the heart?
Biology
1 answer:
GrogVix [38]3 years ago
5 0
The answer to your question is two.
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Why do tree's cells need to make more DNA?
igomit [66]

<em>It’s one of the big mysteries of cell biology. Why do mitochondria—the oval-shaped structures that power our cells—have their own DNA, and why have they kept it when the cell itself has plenty of its own genetic material? A new study may have found an answer.</em>

<em>It’s one of the big mysteries of cell biology. Why do mitochondria—the oval-shaped structures that power our cells—have their own DNA, and why have they kept it when the cell itself has plenty of its own genetic material? A new study may have found an answer.Scientists think that mitochondria were once independent single-celled organisms until, more than a billion years ago, they were swallowed by larger cells. Instead of being digested, they settled down and developed a mutually beneficial relationship developed </em>

<em>It’s one of the big mysteries of cell biology. Why do mitochondria—the oval-shaped structures that power our cells—have their own DNA, and why have they kept it when the cell itself has plenty of its own genetic material? A new study may have found an answer.Scientists think that mitochondria were once independent single-celled organisms until, more than a billion years ago, they were swallowed by larger cells. Instead of being digested, they settled down and developed a mutually beneficial relationship developed </em>

<em>I</em>

6 0
3 years ago
(WILL MARK BRAINLIEST AND THANK YOU!) **EXTRA POINTS**
liberstina [14]

Answer:

This structure provides support and protection for plant cells = Cell Wall

This is a large, central fluid-filled structure that provides turgidity = Vacuole

A thin semipermeable barrier around the cell which regulates what enters and leaves the cell = Cell membrane

The control center of the cell = Nucleus

It is often described as the cells Power Plant = Mitochondria

This is used by plant cells for photosynthesis = Chloroplast

Hope this helps :)

Plz mark Brainliest :D

Explanation:

The giant blue thing is the vacuole

The thin yellow line is the cell membrane

The yellow and orange ball is the nucleus

The light green thing with zig zag lines is the mitochondria

The dark green thing inside the cell is the chloroplast

The thing outside the cell is the cell wall its green

6 0
3 years ago
Read 2 more answers
Pls help&lt;3 What is the end result of crossing-over during the first stage of meiosis?
zimovet [89]

Answer:

a

Explanation:

Because the chromatids now contain little bits of DNA from one another they aren't identical. hope it helps

6 0
3 years ago
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23 POINTS!!
Llana [10]

Biologist study <u>biology cell</u>, which is the study of life.


if you missed typed on the word bank to have a , next to biology and cell then the answer is <u>biology</u> since that's the study of life

5 0
3 years ago
Read 2 more answers
While observing a plant cell through a microscope , a student noticed some small , moving green disks , these organelles were mo
cestrela7 [59]

Answer:

They are Chloroplasts, since Chloroplasts are green and maybe moving.

5 0
3 years ago
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