The amount of carbon removed by forests in the United States each year is equal to . A. 3390 semi-trucks full of carbon b. 150 million metric tons c. 80% of the carbon in the atmosphere d. 1300 semi-trucks full of carbon.

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

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.

Models are non-visual ways of coummincating how someone thinks about something in the natural world