Which of the following would you use to view organelles?

hand lens

compound light microscope

electron microscope

basic light microscope

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

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).

Which describes the changes in the earths motion?