Answer:
The answer is A
By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
The correct answer is B. Prokaryotes do not have a nucleus, while eukaryotes do.
Answer:
The role of rhinos in the food chain is to act as a primary consumer, since they are herbivores that eat nothing but plants and grasses
Explanation:
I looked it up :D
Carbon dioxide is the compound in photosynthesis, I'm pretty sure