Which of the following descriptions applies to most protists? a. unicellular prokaryotes b. multicellular prokaryotes c. unicellular eukaryotes d. multicellular eukaryotes

Depending on the organism the number of in a cell may change

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade

How does the carbon cycle involve an exchange of carbon