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amid [387]
3 years ago
14

Plz help!!!! Thank yuh

Biology
2 answers:
goldfiish [28.3K]3 years ago
8 0

I think the answer is the top choice.

Hope this helps.

Sav [38]3 years ago
7 0

A is the answer my dude

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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

5 0
2 years ago
How do photoautotrophs make energy?
Maslowich
The make energy from sunlight through photosynthesis.
5 0
3 years ago
What system is used to identify unknown organisms?
Afina-wow [57]

Answer:

a identification key

Explanation: because it identifys you

6 0
3 years ago
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What are the characteristics of eukaryotic cells but not of prokaryotic cells?
Mazyrski [523]

Answer:

I) Presence of nuclear envelope

II) Presence of membrane-bounded organelles

Explanation:

Unlike prokaryotic cells, eukaryotic cells possesses nuclear membrane and membrane-bound organelles. As a result, they undergo mitosis and meiosis.

Examples of organisms with Prokaryotic cell are bacteria, cyanobacteria

Examples of organisms with eukaryotic cells are green plants, fruitfly etc

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3 years ago
How many square miles in Dublin ireland
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Im pretty sure its <span>115 km²

Hope i helped</span>
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2 years ago
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