Which genus of single-celled organisms feeds by surrounding its food with cytoplasm and engulfing it?

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen

How is anaerobic respiration affected by changes in temperature? (5 points)based on the conditions of early earth, what conclusion can you draw about the amount of anaerobic respiration that was occurring at earth’s beginning? explain your answer.(5 points)if there was a sudden drop in temperature after the evolution of the first living cells, predict how that might have affected the changes in the atmosphere and the evolution of cyanobacteria and other autotrophs. explain your answer. (5 points)

Ineed on only on number 6 this is the only question that i need on