How does wind primarily cause erosion a. by abrasion b. by deflation c. by decomposition d. by evaporation

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?

1. the is the thinnest part of the earth. 2. the is the thickest part of the earth. 3. what metals are mentioned in the text?

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry