According to the fossil record above, during which era did mammals first appear? A)
Cenozoic
B)
Mesozoic
0
Paleozoic
D)
Modern Day

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance

What are the student's observations and inferences before he starts his investigation?