Freshwater and Marine Biomes Answers

Researchers aboard the H.M.S. Challenger discovered over 4000 new species of marine life.

Limnetic, profundal, littoral, and benthic have what in common?a.They refer to the upper-level zones found in salt- and freshwater ecosystems.b.They are all zones found in freshwater systems.c.They refer to the lower-level zones found in salt- and freshwater ecosystems.d.They are all zones found in saltwater systems.

Which of the following organisms lives near the surface of aquatic biomes because it needs sunlight to survive?a.phytoplanktonb.zooplanktonc.sturgeond.manatee

Which of the following did not allow researchers to further explore below the ocean’s surface?a.ROV’sb.Alvinc.Palomaresd.Bathysphere

Organisms that live in freshwater and marine biomes have developed unique adaptations that aid in their survival. Which of the following adaptations would be the most beneficial to wading birds? a. dense feathers b. webbed feet c. long, light legs d. waterproof feathers Please select the best answer from the choices provided

Saltwater fish constantly drink water but still excrete concentrated urine to compensate for the water loss. They also have gills to help excrete excess salts. Conversely, freshwater fish absorb salt from their surroundings using their gills and their bodies reabsorb salt from their urine. This describes how salt- and freshwater fish _______.a.use their gills to drinkb.keep the salinity levels even in their aquatic environmentsc.have adapted to deal with osmosisd.have evolved behavior patterns to match their physiology

Unlike lakes, the ocean is separated into zones.

Organisms that live in freshwater and marine biomes have developed unique adaptations that aid in their survival. Which of the following adaptations does not help an animal move through the water? a. streamlined body b. thick layer of blubber c. flippers and flattened tails d. smooth, almost furless body Please select the best answer from the choices provided

Temperatures in ponds and lakes vary by season.

Which of the following is not an example of a wetland?a.estuaryb.bogc.swampd.marsh