Answer:
Lungs.
Explanation:
Lungs are the organs that are responsible for gaseous exchange in humans. The lungs absorb oxygen from the air that is required for the process of respiration while on the other hand, carbon dioxide is transferred from the cells to the lungs through blood because carbondioxide gas is a waste material that is produced during respiration so it can be removed from the body with the help of lungs..
DNA stores the instructions (genetic information) used to build proteins.
I believe heterotrophs are organisms that get their energy by eating other organisms. These organisms are also called predators
Answer:
A. As a young naturalist, Charles Darwin traveled around the world and made many discoveries on a small British navy ship, HMS Beagle.
Answer:
2 b
3 b
the others I really don't understand, they are incomplete or misspelled
