Explain how cells get rid of carbon dioxide, nitrogen, and water in the circulatory system.

What must happen before meiosis can begin? a. four gametes must be produced b. the four tetrads must be pulled apart c. dna doubles and produces sister chromatids d. the cell membrane pinches together

Which organelle breaks down sugar molecules that supply energy to the cell ?

The pronunciation aid that determines the stress placed upon a syllable is the