Biogeochemical cycles maintain the balance of elements and compound in nature.
These help the chemical substances to circulate through different spheres of the earth.
They are, water cycle, sulphur cycle Nitrogen cycle, Carbon cycle ,Phosphorus cycle etc.
If the biogeochemical cycles were not present then elements such as nitrogen , phosphorus carbon should have got completely used up instesad of getting replenished. Thus, making several metabolism stagnant.

8 0

4 years ago

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Which type of solution will cause cells to swell, or even to burst?

Inga [223]

Answer:

(b) Hypotonic solution

Explanation:

Any solution having lower osmotic pressure as compared to another solution is called as a hypotonic solution and the reason that a solution is hypotonic is that it has more water and lesser dissolved solute in it.
If a cell is placed in a hypotonic solution, the amount of water content in the cell would be lesser as compared to that of the solution and hence, the water will enter the cell due to which the cell will swell and may even burst.
The water molecules can enter the cell through the semipermeable membrane and in case of plant cells, the presence of cell wall may prevent it bursting, however, the animal cells lack the cell wall and hence if kept in hypotonic solution for long these cells may burst.

4 0

3 years ago

Describe how and why dichotomous keys are<br> used.

Tpy6a [65]

Answer: A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item.

Explanation: google

8 0

3 years ago

Which is a basic characteristic of all living cell?

Charra [1.4K]

Answer: nucleus

Explanation:

3 0

3 years ago