A marine protected area requires a level of protection that protects the native species but also allows fishing. Which of the following levels would allow fishing?

A. nature reserve

B. sustainable use area

C. marine park

D. species management area

Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

The hematodinium parasite becomes less of a problem for the blue crab when the crab is very young. fishing is thriving in the region. the crab moves to less salty water. a significant percentage of the population is impacted.