3.

A

B

C

D

Heat from which of these causes

convection currents inside Earth?

crust

crust and mantle

crust and core

mantle and core

How is a factory gate and doors like a cell membrane?

A person has developed a condition where his heart valves are damaged. Use complete sentences to explain the effects of such a condition on the circulatory system.

Which of the following is not a characteristic of a parenchyma cell? a. the most abundant type of plant cell c. thin, flexible cell walls b. thick, rigid cell walls d. large central vacuoles

Consider the following: Succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction is inhibited by malonic acid, which resembles succinate but cannot be acted upon by succinate dehydrogenase.

An amoeba is an example of

Which of the following is an example of an adaptation? A dog sits when it hears a a command because it's owner rewards it with food B. The coloring of a monarch butterfly alerts predators to the fact that the butterfly is poisonous. C.

Why was Charles Darwin on the H. M. S. Beagle

The phenomenon where rare traits are found in abundance in a new or recently isolated location is called

What is the function of dystrophin and how is it altered by DMD?

According to the law of conservation of matter, matter is never created or destroyed. It only changes form as is evident in the water cycle.