One of the stages of the cell cycle is mitosis, involving A
the accumulation of nutrients by a cell.
B
the fertilization of an egg cell by a sperm cell.
с
the division of one cell into two identical cells.
D
the replication of DNA within a cell.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

Asolution containing hci would likely have

Hairs that clean dirt out of the air in your nasal passages are called: a. sinus b. trachea c. cilia d. mucus