LS ch 12 vocab

_____________ is a fluid filled-internal cavity surrounded by muscle tissue.

• hydrostatic skeleton

• cell membrane

• coelom

• nerve net

A netlike control system that sends signals to and from all parts of the body.

• brain stem

• nerve net

• sensory web

• undulation

Some animals move in a wave-like motion called ____________

• underwear

• reciprocation

• the worm

• undulation

Movement of substances from an area of high concentration to an area of low concentrations.

• osmosis

• diffusion

• spiracles

• undulation

tiny holes on the surface of an organism where oxygen enters the body and carbon dioxide leaves the body.

• diffusion

• spiracles

• lungs

• gills

__________ are organs that enable oxygen to diffuse into an animals body and carbon dioxide to diffuse out.

• spiracles

• lungs

• gills

• undulation

a system that transports blood and other fluids in open spaces that surround organs in the body.

• Circulatory system

• closed circulatory system

• open circulatory system

• respiratory system

A system that transports materials through blood using vessels.

• Open circulatory system.

• Closed circulatory system

• Respiratory system

• Leopard nation lets ride

a specialized structure in the digestive system where ingested material is stored.

• gizzard

• crop

• heart

• stomach

a muscular pouch similar to a stomach that is used to grind food.

• crop

• gizzard

• gall bladder

• stomach