8. Which example describes a consumer? A. an organism that makes its own food
B. an organism that eats other organisms
C. an organism that breaks down dead material for food

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

The cell membrane controls what enters and leaves the cell. which of the structures in the diagram below is the cell membrane? — f о