3. Autotrophs ...
O A. make their own food
O B. are the base of the
food chain
o C. are primary producers
o D. all of the above

D: all of the above

Explanation:

Autotrophs have photosynthesis so they are like plants they make their food by photosynthesis they are base of the food chain because other animals eat it

the correct answer is D.

Explanation:

Autotrophs make their own food, which also makes them the start of every food chain. Primary producers make their own food so all three answers are correct which makes the answer all of the above.

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation: