Primary producers get their energy from the sun.
Answer:
B
Explanation:
It's NAD+ because if you look at the electron transport chain, NADH delivers its electron to protein 1 (which causes NADH to turn to NAD+) and eventually those electrons move through multiple proteins to finally be accepted by Oxygen. If there's isn't oxygen, NADH won't be able to deliver electrons since those electrons wont end up anywhere. Which means NADH won't be oxidized (lose electrons) to turn into NAD+. NAD+ is necessary in citric acid cycle since it is reduced to turn into NADH.
Answer:
inter-phase
Explanation:
The Eukaryota cell spends most of its "life" in inter-phase of the cell cycle, which can be subdivided into the three phases, G1, S and G2. During inter-phase, the cell does what it is supposed to do. Though cells have many common functions, such as DNA replication, they also have certain specific functions.
