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Lina20 [59]
3 years ago
10

In humans, structures that show developmental homology with other chordates are ____.

Biology
1 answer:
4vir4ik [10]3 years ago
6 0
Gill ridges and a bony tail....
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Particles that "orbit" the center of an atom are called *
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protons and neutrons

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According to scientists, ocean waves could be a source of energy. Devices are being designed to capture the energy from waves an
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The cell is taking in substances through membrane proteins, without any energy expenditure of its own. The substances naturally
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Read 2 more answers
Differences between arteries, veins and capillaries​
matrenka [14]

Answer:

There are three main types of blood vessels:

1)Artery ---

i) It is a blood vessel having a thick wall.

ii) It carries blood from the heart to different parts of the body.

iii) On regulatory demand of the body it can dilate or constrict.

iv) It doesn't contain any valve.

v) All arteries carry oxygenated blood except the pulmonary artery.

2)Vein ---

i) It is a blood vessel having a thin wall.

ii) It brings blood from different parts to the heart.

iii) It can't dilate or constrict under normal conditions.

iv) It contains valves that allow the blood to flow in one direction towards the heart.

v) All veins carry deoxygenated blood except the pulmonary vein.

3)Capillary ---

i) It is a very narrow blood vessel that has very thin walls.

ii) It forms a network throughout the body in all living cells connecting arteries to veins.

iii) It can dilate or constrict according to the requirement of tissue.

iv) It doesn't have any valve.

v) It contains mixed blood as it connects arteries and veins

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2 years ago
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