What is pre. existing cell.
​

Rudolf Virchow confirms that all cells must come from pre-existing cells. These events gave way to the modern cell theory, which states: All living things are composed of one or more cells. The cell is the basic unit of life. New cells arise from pre-existing cells.

Explanation:

hey, here is your answer mate..!

Explanation:

All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms.

hope it helps mark as brainlist please

vote read

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.