Why do you think scientists think the first organisms did not need oxygen to survive?

The genetic info is found in the nucleus.

Answer:

pushes back against the hand

Explanation:

This can be explained by Newton's third law.

Newton's third law states that every action corresponds to a reaction, of the same module, the same direction and opposite directions. This means that when we push on a surface, beings are pushed by the surface, in the same direction but in opposite directions. The same is true when we hit a surface with your hand. Our hand will receive the same blow that the surface received, in the same direction and in the opposite direction.

For this reason, we can say that if a man pushes a table with his hand, his hand will be pushed by the table too, but in the opposite direction. If the man pushed the table forward, his hand will be pushed back.

Answer:

Pushes back against their hands.

Explanation:

The table pushes back against their hands. This is why we can't break objects easily.

1. Reduction in competition is most likely to cause increases in a predator population.
2. The medulla, part of the brain stem, reacts quickly to increased levels of CO2 in the blood and stimulates a response from the respiratorysystem.

What is predation?

Predation is the process whereby one animal called the predator kills and feed on another animal called the prey.

An increase in the population of a predator will most likely occur because there is a reduced competition for the same prey.

Question 2:

The medulla is a significant part of the brain that controls the rate at which respiration occurs.

According to this question, the medulla (part of the brain stem) reacts quickly to increased levels of CO2 in the blood and stimulates a response from the respiratory system.

Learn more about predation at: brainly.com/question/14890528