21. Which of the following are external regulators of the cell cycle? cyclins
b. growth factors
mitotic spindles
d. cancer cells

maritime tropical may be your answer.

earthquakes in florida are rare because the state is not located near any tectonic plates. in fact, florida is tied for first place as having the fewest earthquakes of any state. much of florida is limestone and seafloor materials that is not conducive to earthquakes.

explanation:

i believe it is c: genes for body color and wing size are inherited separately from each parent.