Which of the following characteristics is shared by all organisms? a) all organisms are composed of two cells b) all organisms can smell and taste c) all organisms have cells that contain dna

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.

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?