An ecologic ecologist is studying the effects that a population of predators is having on a population of prey he use data from the fields produce this line graph which conclusion can you draw from the graph

The Population of prey decreases as the population of predators increases

Explanation:

The line shows that when the number of predators increase, the number of prey decreases because the line goes down when the population of predators increases

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times