What process do producers go through to obtain energy?

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

The tubes transporting minerals and water upward are called ?

Which would be the most useful source of evidence to support mcneill's contention?