Which organelle releases chemicals that break down large food particles into smaller ones?

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

What best explains the inability for life to exist in earth early atmosphere