What type of muscle bends a joint in the body?

A person who specializes in the study of plants is called what?

What is the human body's largest organ?

Which adaptation allows an organism to blend in with its surroundings?

What is a full set of bones called?

What is the process of joining the male and female sex cells of a plant called?

What snail-shaped organ in the ear funnels sound to the auditory nerve?

What kind of plant stem is soft and green?

What are plants that grow, reproduce and die all in one season called?

What happens to your skin's blood vessels as you exercise?

What is the basic unit of function and structure in living organisms?

What does an ornithologist study?

What openings in a leaf allow gas exchange?

What type of reproduction uses only one parent cell?

What is an algal bloom that occurs in salt water called?

Trisomy-21 is popularly known as what?

What are the small bones that make up a backbone called?

Which cell part is responsible for controlling most of the activity inside a cell?

What layer of the skin is just below the surface?

Where in the human body are the anvil and stirrups located?

What body system is the human heart part of?

What organ filters blood and helps regulate salt and water levels?

What is made by white blood cells to help fight off infection?

Where are the female sex cells of a flower located?

What "trapdoor" on your windpipe helps keep out food particles?