Explain how autotrophs versus heterotrophs obtain the energy that they need for life

What adaptation is apparent in the bodies of the three tortoise species shown in figure 16-2

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.

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?