Atolls Are Volcanic Peaks on the Ocean Floor

question 36

True/False

Atolls are volcanic peaks on the ocean floor.

---

Definitions:

Kidney

A pair of organs in vertebrates that filter blood to remove waste products and excess substances, producing urine.

Blood

A vital liquid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away.

Urine

A liquid by-product of metabolism in humans and many animals, expelled from the kidneys and stored in the bladder until elimination.

Efferent Arteriole

The blood vessel that carries blood away from the glomerulus of the kidney after filtration has occurred.