2. sea star generally lives by eating oysters. fishermen who catch oysters for a living consider sea stars a nuisance so they try to cut them up and throw them back into the sea. why will this practice not reduce the population of the sea star?

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same

Apopulation of bolts has a mean thickness of 20 millimeters, with a population standard deviation of .01 millimeters. give, in millimeters, a minimum and a maximum thickness that includes 68% of the population of bolts.

If the null hypothesis is false and the researchers do not reject it a type 2 error has been made. true or false