Which checkpoint requires a cell to be of adequate size in order to move to the next phase in the cell cycle?

Pulmonary arteries carry highly oxygenated blood. true or false?

If you want to double a batch of brownies you must have double the ingredients before you start cooking similarity a cell must double its contents including its dna prior to dividing

Alaboratory investigation included examine prepared slides of pond water singled celled organisms with a nucleus and either cilia or flagella were visible these organism probably belong to the kingdom