If the ribosomes of a cell were destroyed what effect would this most likely have on the cell

If many different species live in an ecosystem, this the ecosystem to fill its a. populations b. niches c. producers d. communities

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules