Compute the standard error, given that
a) 31 = 18.31, n1 = 8, 32 = 46.43, n2 = 7
SE =

Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers

Aplan that covers all qualified higer education expenses is known as a