Adequate supply of food
absence of predators
Answer:
Helping others is the characteristics of human beings.
Explanation:
It is very important to stand up for others because helping others is the property of human beings. Those people who stand for other people and help them in their difficult situation, these people helped by the God and these people get happiness and prosperity in their life while on the other hand, those people who can't stand for other people will also can't receive help from others in difficult and needy situation. This stand also shows your courage and bravery to the opposite party.
D. fingernails
Skin, hair, and vertebrae are all the outer layer of the body and protect the body. The fingernails aren't part of that.
<span>B is the correct answer. The beginning of DNA replication occurs with the unwinding of the DNA helix by a special enzyme. The two strands that form the helix then create a replication fork. The two strands are then oriented differently, one becoming the 'leading strand' and one the 'lagging strand'. </span>
Answer: Sand, silt, and clay