Ch 12 Animal Structure & Function Vocab

Support structure consisting of a fluid-filled internal cavity surrounded by muscle tissue

• nerve net

• hydrostatic skeleton

• coelom

• neuron

Fluid-filled cavity of a hydrostatic skeleton

• coelom

• nerve net

• hydrostatic skeleton

• undulation

Netlike control system that sends signals to and from all parts of the body; found in animals with radial symmetry and no brain

• hydrostatic skeleton

• coelom

• neuron

• nerve net

Wavelike motion that animals without legs use to move

• coelom

• spiracle

• undulation

• nerve net

Movement of substances from an area of higher concentration to an area of lower concentration

• diffusion

• open circulatory system

• closed circulatory system

• absorption

Tiny hole on the surface of an organism where oxygen enters the body and carbon dioxide leaves the body

• diffusion

• spiracle

• gills

• crop

Organs that enable oxygen to diffuse into an animal's body and carbon dioxide to diffuse out

• crop

• gizzard

• gills

• absorption

Transports blood and other fluids into open spaces that surround organs in the body

• diffusion

• closed circulatory system

• open circulatory system

• absorption

Transports materials through blood using vessels

• open circulatory system

• coelom

• diffusion

• closed circulatory system

Process in which nutrients from digested food are taken into the body

• absorption

• coelom

• diffusion

• undulation

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3