Ais a membrane-bound sac found in cells that contains digestive enzymes which break down complex molecules or structures.

*will mark brainliest to first correct answer* photosynthesis led to increasing levels during the later proterozoic eon? a. oxygen b. water c. carbon dioxide d. none of the above

The activity of the modern sample is 1.10 bq . how long does that measurement take?

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.