Primary producers are usually the start of a food web. They make their own energy by converting carbon dioxide sunlight and water into food. Then a secondary producer would be the second part of the food web. They usually are herbivores so they only eat plants, which would be the primary producer. Next, is decomposers, decomposers are organisms break down what’s left of dead or decaying organisms like animals and plants. Hope this helped have a great day :-)
C) they are both places where ATP is produced.
Animal cells don’t have thylakoids.
Animal cells do not contain chloroplasts or chlorophyll.
Glycolysis occurs in the cytoplasm.
The answer would be the first option or oxygen energy system.
I believe the answer is C. The weaker members may die out and the stronger members become the species