Which of the following mechanism of evolution usually cause an increase in genetic diversity within a species a- competition
b- genetic drift
c- mutation
d- gene flow
justification-

as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

d. planting trees

the trees take in carbon to make oxygen.