Support, Control, and Movement
A fluid-filled internal cavity surrounded by muscle tissue?
A Hydrostatic skeleton
The movement of substances from an area of higher concentration to an area of lower concentration.
Diffusion
A system that transports blood and other fluids into open spaces that surround organs in the body
An open circulatory system
Important for survival because it removes harmful substances from the body.
Excretion
Carbon dioxide is removed through the gills. Solid waste leaves the body in the form of feces.
Excretion in aquatic animals
The fluid-filled internal cavity?
A coelom
Tiny holes on the surface of an organism through which oxygen enters the body and carbon dioxide leaves the body.
Spiracles
A system that transports materials through the blood using vessels.
Closed circulatory system.
Different animals use different structures to obtain and break down food.
Digestion
An organ used by marine life to excrete materials.
What is kidney?
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A netlike control system that sends signals to and from all parts of the body?
A Nerve Net
Is organs that enable oxygen to diffuse into an animal's body and carbon dioxide to diffuse out.
Gills
Birds and mammals such as cats, dogs, and humans have hearts with four chambers.
Chambered Hearts?
A specialized structure in the digestive system where ingested materials are stored.
Crops
The gas exchange due to excretion.
What is diffusion.
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What is a wavelike motion called?
Undulation
By their structure and environment.
How do organs used for gas exchange differ?
To give or to transfer
Exchange
A muscular pouch similar to a stomach that is used to grind food.
Gizzard
Instead of excreting ammonia, most animals that live on land excrete urea as a waste product
Excretion in Terrestrial Animals
Helps an animal obtain food and escape from danger.
What is movement?
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Two things cells need to survive.
What are nutrients and oxygen?
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The process by which gas is exchanged in animals and the environment.
What is Circulation?
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The process by which nutrients from digested food are taken into the body.
Absorption
Removal of waste materials from the body.
What is Excretion?
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