Asimple marine food chain is depicted below. given what you have learned about the biomagnification of some pollutants (e. g., cadmium), in what organism would you expect to find the greatest concentration of cadmium?

a. killer whale
b. marine seal
c. plankton- eating fish
d. phytoplankton

Skulls of (1) modern gorilla, (2) australopithecus afarensis, (3) homo erectus, (4) homo neanderthalensis, (5) homo sapiens based on the diagram, which of the following best describes ways in which the physical appearance of h. neandertalensis and h. sapiens differ? (2 points)

In a certain ecosystem owls are predators for mice. the owl population increases and they eat more mice this causes the mouse population to decrease what happens next? a. the birth of mice increases. b. the birth rate of owls increases c. the population of owls decreases d. the population of mice increases

What two fields of study provide the core information that is used to classify organisms?