Animal Movement, Circulation, and Breathing

Front

What is a closed circulatory system?

Back

A closed circulatory system is a type of circulatory system where blood is contained within blood vessels, allowing for efficient transport of nutrients and oxygen throughout the body.

Front

What are blood vessels?

Back

Blood vessels are the tubes through which blood flows in the body, including arteries, veins, and capillaries.

Front

What are spiracles?

Back

Spiracles are small openings on the surface of some animals that allow for gas exchange, particularly in insects and some aquatic animals.

Front

What are vertebrates?

Back

Vertebrates are animals that have a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fish.

Front

What is a nerve net?

Back

A nerve net is a decentralized control system found in some simple animals, like jellyfish, that allows for basic movement and response to stimuli.

Front

What is the function of lungs in animals?

Back

Lungs are respiratory organs that allow for the exchange of oxygen and carbon dioxide between the air and the bloodstream.

Front

What is diffusion in the context of gas exchange?

Back

Diffusion is the process by which gases move from an area of higher concentration to an area of lower concentration, allowing for gas exchange in organisms.

Front

What is the role of muscles in a closed circulatory system?

Back

Muscles surrounding blood vessels can contract and relax to regulate blood flow and pressure within the circulatory system.

Front

What are invertebrates?

Back

Invertebrates are animals that do not have a backbone, including insects, arachnids, mollusks, and crustaceans.

Front

What is the significance of having a backbone?

Back

Having a backbone provides structural support, protects the spinal cord, and allows for greater mobility and complexity in movement.