The accurate answer is:
Natural selection is based on Darwin’s observation that individuals most likely to survive and reproduce are those _____.Environment
The answer is 4 gametes that have the number of chromosomes....
It seems you forgot your options, but here are some things found in a chloroplast:
grana
Granal thylakoids
Stroma
Nukleloids (DNA rings)
Ribosomes
Starch granules
membranes
Now, some examples of thing NOT found in a chloroplast:
Endoplasmic Reticulum (that's another organelle)
D- the frequency of the recessive alle increases over time