What distinguishes the pupa stage and adult stage of caterpillar a. searching for food b. being able to reproduce c. looking wormlike d. being fertilized

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.

What is the difference between a meteoroid and a meteor?