Answer:
The answer is d
Explanation:
He picked the P plants because they were easy to work with and they grew relatively fast and they also had characteristics that he could manipulate(Brainliest please)
Answer: D
Explanation: Oxygen plays a vital role in energy production via a system called electron transport chain , which is an important component of cellular respiration. ... Oxygen acts as a final electron acceptor that helps move electrons down a chain that results in adenosine triphosphate production
Passive transport is the movement of substances across the membrane without the expenditure of cellular energy.
