The circulatory systems of bony fishes, rays, and sharks are most similar to ________.
A. those of birds, with a four-chambered heart B. the portal systems of mammals, where two capillary beds occur sequentially, without passage of blood through a pumping chamber C. those of sponges, where gas exchange in all cells occurs directly with the external environment D. those of humans, where there are four pumping chambers to drive blood flow

Question

23-08-2022
Biology

contestada

The circulatory systems of bony fishes, rays, and sharks are most similar to ________.
A. those of birds, with a four-chambered heart B. the portal systems of mammals, where two capillary beds occur sequentially, without passage of blood through a pumping chamber C. those of sponges, where gas exchange in all cells occurs directly with the external environment D. those of humans, where there are four pumping chambers to drive blood flow

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vipinkumar69547 vipinkumar69547 · Answer 1 · 2022-08-30T05:14:33+02:00

The circulatory systems of bony fishes, rays, and sharks are most similar to the portal systems of mammals, where two capillary beds occur sequentially, without the passage of blood through a pumping chamber.

The class of Osteichthyes, which includes all bony fish, sharks, and rays, has a closed circulatory system. This system has gills, a heart, and blood arteries, and functions similarly to the circulatory system in humans.

Fish's two-chambered hearts only pump in one way. Amphibians have three chambers in their hearts, which allows for some blood mixing and double circulation.

Blood travels from the ventral aorta to the gill filaments, where it is given oxygen. The body and head organs receive oxygenated blood that travels from the gill filaments. Blood is pumped around the body via a sophisticated network of capillaries, veins, and arteries, and it eventually returns to the sinus venosus.

To learn more about Osteichthyes refer to:

https://brainly.com/question/4031548

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