I do believe it is C hope this helps its been a while since i was leaning about this.....
Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. That means that they will never be a copy of their parents because of their different genetic material. Characteristics, such as eye color, hair type and color, the shapes of facial features, and height and build, and attribute the combinations of these to the portions of DNA inherited from each parent which makes them different but still carry the DNA of their parents.
The answer is A hypothesis is tentative statement and A theory has a strong predictive power.
( I hope this is right :) )
Answer:
a. Producers
Explanation: Plants make the largest impact on the biosphere. All the other answers relate to animals which does not make such large impact.