Answer: Valves in the veins
Explanation: The flow of the blood inside the body takes place through the veins and arteries. The oxygenated blood from the heart is supplied to the different parts of the body.
The blood flows from the capillaries to the venules and from there to the veins. The blood moves in the veins by the rhythmic movement of the smooth muscles in the body.
Most of the blood moves against the gravity so there is a chance that it can backflow so to prevent this there are valves in the veins known as one way valves.
<h2>Answer:</h2>
The same type of amino acid, means acidic amino acid substitution will leads to normal folding.
The amino acid will be glutamic acid.
<h3>Explanation:</h3>
- Sometimes the amino acids of the same type substitution leads to normal proteins.
- As the acidic group of aspartic acid is responsible for the folding of the protein .
- So if the amino acid is substituted by glutamic acid, it will not leads to any abnormal protein folding.
- Because glutamic acid also has a acidic group which is responsible for folding of protein.
Answer:
c
Explanation:
Sexual: meiosis, crossing over, and random assortment of chromosomes; pollination
Answer:
holding a yearly drawing
using the color black to indicate the unlucky winner
sacrificing people from the town every year