Which nutrient is the first (easiest) to be broken down and absorbed for energy use in the body?
a. water
b. carbohydrates
c. fats
d. proteins don't answer this if you don't know the answer for sure

What is a population? a. all the members of the same species living in the same ecosystem at the same time b. the number of a species living in the same ecosystem over a period of time c. the total number of organisms living in an ecosystem at a point in time d. all the members of a food web in the same ecosystem