When energy changes from one form to another, it always goes from a more useful to a less useful form. True

False

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?

What must be done to breed dogs for a partical trait

How do living things obtain phosphorus