What is a closed circulatory system?
Animal Movement, Circulation, and Breathing

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Science
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6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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.
2.
FLASHCARD QUESTION
Front
What are blood vessels?
Back
Blood vessels are the tubes through which blood flows in the body, including arteries, veins, and capillaries.
3.
FLASHCARD QUESTION
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.
4.
FLASHCARD QUESTION
Front
What are vertebrates?
Back
Vertebrates are animals that have a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fish.
5.
FLASHCARD QUESTION
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.
6.
FLASHCARD QUESTION
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.
7.
FLASHCARD QUESTION
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.
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