I would say the best answer is C because you will have the short and then the long and then the subjects all in groups to help
Hope this helped
Would appreciate Brainleist
Answer:
Explanation:
For question 2 I think the answer is Endocytosis. 'Exo' means out and 'Endo' means in.
For question 4 I think it's A.
If you have ever played it, think of Agario. The bigger the molicule (or circle), the slower it moves.
I don't know about the others.
Hope this helps :)
c. It never changes during the experiment.
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
