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Circulation and Gas exchange (Primarily done to exchange gasses between a…
Circulation and Gas exchange
Primarily done to exchange gasses between a organism and its environment.
To get oxygen and other nutrients directly to the cell the organic substances perform diffusion which is a form of movement based on heat present in the organism and environment.
There are two ways for diffusion to occur
Gastrovascular cavities-function is to distribute substances throughout the body, as well as digestion. An opening of the cavity on one end is exposed to the environment.
Animals with smaller and more simple bodys usually have most of their cells in contact with their environment. Found in Cnidarians such as jellies and hydras
Open and closed circulatory systems which contains three basic components: a circulatory fluid, a set of interconnecting vessels, and a muscular pump. the heart.
The heart uses metabolic energy to pump fluid by using metabolic energy to increase the fluids hydrostatic pressure on its passageway, which when done repeatedly causes it to pump and cycle through the circulatory system.
When you breathe, organs that are connected to the environment take in oxygen, where they come in contact with cells that transport needed materials throughout the body
Circulatory systems are either open or closed.
Open circulatory system-The circulatory fluid is called hemolymph is also the interstitial fluid that bathes body cells. common in arthropods such as grasshoppers
Hemolymph-
Closed circulatory system-has a circulatory fluid known as blood is confined to vessels and is separate from the interstitial fluid. Blood goes to large vessels and travels to smaller vessels that can reach tissues and organs, Blood transfers resources to interstitial fluid which then transfers to body cells.
Vertebrates have their own heart and blood vessel system known as the cardiovascular system
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