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slega [8]
3 years ago
7

What is the purpose of the yolk in an amphibian egg?

Biology
1 answer:
lbvjy [14]3 years ago
6 0
The correct answer is that the yolk provides nutrients for the embryo. Hope this helps.
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what is the significance of diffusion and osmosis in living organism ?give one example in support of your answer​
olasank [31]

Answer:

Diffusion is the process in which molecules and ions move from a region of high concentration to low concentration. Its also how cells transport waste out of the cell and nutrients into it hence being very crucial. Diffusion also occurs without the expenditure of extra energy using a procedure known as passive transport. (Osmosis is a form of diffusion but deals with water exclusively).

Examples of where diffusion is important;

In the intestines - Digested food molecules such as amino acids and glucose move down the concentration gradient from the intestine into the bloodstream. Wastes such as carbon dioxide or urea travel via diffusion from the body's cells to the bloodstream.

Osmosis plays a major role in living organisms. It aids in the transportation of nutrients from cells to cells and also helps to remove the waste's metabolic products from the cell. The purification of blood in the kidneys is also dependent on the process of osmosis.

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1 year ago
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hard to explain

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To be able to compare the results to a sample without any of the independent variable added.
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Beaches, Mountains, Coastal Plains, Glacier, lackes

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