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The unit of power is a derived unit​

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?