I'd say the answer is C Increase in plant and animal diversity.
Because grasslands are usually too dry for certain plants and animals to live there, but with more precipitation more organisms would live there.
Survival of the fittest means only the strong will survive and the weak will die
Answer:
d
Explanation:
body size has nothing to do with color. increased number of hunters doesn't work because environment isn't mentioned (i.e. if it was a snow environment it wouldn't make sense). random mutations have to have environmental cause to prevail. so it is d.
Answer:End - diastolic volume
Explanation:
End-diastolic volume is the amount of blood that is in the ventricles before the heart contracts. Doctors use end-diastolic volume to estimate the heart’s preload volume and to calculate stroke volume and ejection fraction. These different measurements indicate the health of a person’s heart.
One, and then more than one
