Answer:
C is Wrong there was 1 billon people in 1804 A is Also Wrong B i also wrong so its D
Explanation: Can i have Brainliest
The answer you are looking for is:
D.) Eukaryote
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The answer is B because continental climate is the combination of both hot and cold climates. The Earth isn't only dry nor is it only polar. It is a combination of both that make up the Earth as it is today.
Probably it would be like a room since the door would be the cell membrane and the nucleus would be your bed not 100% sure tho
The answer is A , I hope this is not to late