Mima classify the marine ecosystemsDefine the word ecosystem

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

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Which description provides the best objective summary of the article in the passage?