Give an example of a time when an introduced species had a negative impact on native species in an area. Explain what caused the negative impact.

Which term refers to the total dollar value of the goods and services produced in a country in a year?

!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.

The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is