Dna’s long chains of paired nucleotides are made up of
2 answers:
It is made of a nucleic acid......
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The answer to this problem is crayfish
Option D is correct answer.
You either have to subtract to division
Answer:
A starch molecule is like a reservoir of energy
ARTERIES:
- Arteries have thick outer walls with a lot of muscles and elastic fibers to prevent the artery from bursting while carrying blood at high pressure.
- Arteries have a small lumen to maintain high blood pressure while carrying blood to tissues further away from the heart.
- Arteries do not have valves since high pressure prevents back flow of blood.
VEINS:
- Have a thin outer wall with little elasitic fibers and muscles since blood is carried at low pressure.
- Have a large lumen to prevent the resistance of the blood while being carried back to the heart.
- Contains valves which prevent backflow of blood since the blood is carried at low pressure
