In what way was the R-7 rocket an improvement over the V-2 rocket? O A. It had far more thrust, so it could be launched higher and travel farther.
O B. It was larger and could carry multiple spacecraft at once.
O C. It was more efficient and required less fuel.
O D. It was lighter and was made of less expensive materials.

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

d. organisms have cells with different shapes and functions.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.

1. aerobic

2. lactic acid fermentation

3. glycolysis

4. anaerobic

5. alcohol fermentation