Animal Structure and Function

Which is NOT used to provide an animal with structural support?

• endoskeleton

• exoskeleton

• hydrostatic skeleton

• nerve net

The fluid-filled sac in an earthworm is called a(n)

• coelom

• endoskeleton

• nerve cord

• nerve net

The animal pictured below has which type of support system?

• endoskeleton

• exoskeleton

• hydrostatic skeleton

• no skeleton

Animals with ___________ do not have brains.

• endoskeletons

• gills

• nerve cords

• nerve nets

Which structure is used for food storage?

• crop

• gizzard

• kidney

• stomach

Capillaries are found in animals with

• coeloms

• spiracles

• closed circulatory systems

• open circulatory systems

Which is not used for gas exchange?

• crops

• gills

• book lungs

• tracheal tubes

The animal below uses which organs to excrete ammonia?

• gills

• intestines

• kidneys

• lungs

Which is NOT used by aquatic animals to move through the water?

• fin

• gill

• tail

• wing

What is the basic process of gas exchange?

• absorption

• circulation

• diffusion

• excretion