Please help me please I really need help please In sexually reproducing species, the number of
chromosomes in each body cell remains the same
from one generation to the next as a direct result of.

A.
meiosis and fertilization
B. mitosis and mutation
C. differentiation and aging
D. homeostasis and dynamic equilibrium

Answer is in the photo. I can only upload it to a file hosting service. link below!

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A

Step-by-step explanation:

Those 2 processes are the only ones involved listed with fertilization

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.