(08.05 MC) Zebra mussels were first discovered in North Ame…

(08.05 MC) Zebra mussels were first discovered in North America in the Great Lakes in 1988. This invasive species eats phytoplankton and other microscopic organisms in fresh water. What would be the most likely effect if zebra mussels are introduced into a local freshwater lake?

(07.01 MC) A research team studying a lake ecosystem found t…

(07.01 MC) A research team studying a lake ecosystem found that many male fish were developing female reproductive organs, and some fish were born with deformities such as irregular fins. Which of the following would explain the observed effects on the fish population? An increase in the number of predators in the lake. An increase in the levels of noise pollution in the lake. An increase in the amount of herbicides present in the lake.