By assigning numerical values to descriptions of observed behaviors, psychologists can transfer data into data. A. qualitative . . . quantitative B. observed . . . recorded C. quantitative . . . recorded D. quantitative . . . qualitative Please select the best answer from the choices provided A B C D

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 kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation