Please select the word from the list that best fits the definition Organisms that cannot make their own food.

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

What part of the brain is highlighted in the diagram below?