During an action potential, voltage-gated potassium channels open after voltage-gated sodium channels. The effect this has on the membrane potential is .

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.

Number and variety of living organisms includes genetic, species, and ecological types

How does photosynthesis show the conservation of mass and energy?