Answer:A cell is the smallest unit of a single or multicellular organism. They provide energy for the body of a multicellular organism, and can be specialized by the body for 1 specific task or many.
Explanation:
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Im also stuck on this im down to A and C
Answer:
Which of the following involves a situation in which a density-dependent factor influences a population?
A forest fire on the north side of a mountain forced the white-tailed deer from the north side to move into the range of the white-tailed deer on the south side of the mountain, making food more scarce
Explanation:
I believe this process is known as Assimilation. In this process nutrients are absorbed into the body after digestion in the intestine and its transformation in biological tissues and fluids. Assimilation is different from absorption as absorption involves the process of moving food from the digestive system into the blood system for the transportation to all body parts, while assimilation is the uptake of nutrients into cells and tissues and consequent building up into mores complex substances.
Answer:
C. To make energy-carrier molecules like NADPH
Explanation:
In the light reaction of photosynthesis, Photosystem I is the second photosystem which is known as plastocyanin-ferredoxin oxidoreductase or PSI takes place in green plants or other photosynthetic organisms.
It is a protein complex that utilizes the trapped light energy by chlorophyll to produce high energy carriers such as NADPH. NADPH synthesis is a primary role of the PSI.
Thus, C. To make energy-carrier molecules like NADPH