Why do you think it is important for a cell to grow before it replicates its DNA? Be as specific as you can in your answer

Basically, every time a cell undergoes mitosis (one kind of cell division), various enzymes work to split each DNA strand in half, and then replace the missing half on the separated strands with corresponding nucleotides, leaving you with two identical strands. When the entirety of a cell's genome is copied (along with all the organelles), the cell can split into two daughter cells.

Imagine slicing yourself down the middle and splitting yourself in half, and then using each half of you as a template to recreate the other half.

That's the biology behind it, but the bottom line is that DNA is replicated in order to reproduce itself.

Explanation:

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

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answer is

human impact on the environment can be seen in the deterioration of the !

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