2. Nucleus
9. Cell Membrane
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Animals with a three-chambered heart would include Amphibians.
- Amphibians have three-chambered which comprises of two Atria and one ventricle. Examples of Amphibians include Frog, Toads, Salamanders.
- In Amphibians heart blood from the single ventricle travels to the lungs, skin, and body, where it is oxygenated. Before being pumped out of the heart, deoxygenated and oxygenated blood are mixed in the ventricle.
- This is because the Amphibians have low rate of metabolism and thus requires less oxygen for their metabolism.
- As a result heart's load to deliver oxygenated blood to body is lowered.
Thus, from the above pointers we can conclude that only Amphibians from the option have three-chambered heart.
Learn more about Amphibians:
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Pinocytosis is one type of endocytosis, the general process by which cells engulf external substances, gathering them into special membrane-bound vesicles contained within the cell. ... It is believed that a vesicle may carry extracellular fluid to the opposite side of the cell, where it undergoes exocytosis
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Answer:
4 meters/second (4 m/s)
Explanation:
velocity=distance/time
distance= 100 meters
time= 25 seconds
v=100m/25sec = 4 meters/second (4 m/s)
