Active transport requires ATP molecules and can happen only in living cells
Genes are what code for those things
Answer:
1.A tissue is a collection of similar cells that work together to perform a specific job.
An organ is a collection of different tissues that work together to perform a specific job. The function of a part of an organism is what it actually does (it's job)
2.The structure of the alveoli as a web of blood vessels surrounding an air sac allows blood cells take in oxygen and bring it into the lungs (organ)
Answer:
D. A product.
Explanation:
The water can't be an enzyme, catalyst or reactant because it was not present before or during the reaction. It was only present after the reaction, so it is a product.
