Fish poop.
Tropical white beaches get their pearly white color from the excrement of fish far off of the coast which eat coral and other things that reside on the ocean floor. When they eat they swallow some sand into their mouths as well, and process it with the food they just ate. Their stomachs can't really digest the sand, tiny minute rocks essentially, and thus turn their color white. Or the rock forming the sand can be naturally pigmented a whitish tone as well.
1.
Han Solo genotype: ff
Offspring genotypes: Ff, ff
There is a 50% chance the child will have the force.
2.
Let f be webbed feet and F be non-webbed feet
Parental genotypes: ff ; FF
Possibility of webbed feet in offspring: 0%
3.
Yes, it is possible if both parents are heterozygous. 25% of offspring will be grey.
4.
Pheonotypes: Hairy and non-hairy fur
genotypes: HH, Hh, hh
5.
Parental genotypes: RR and RL
Offspring phenotypes: Brown hair and Brown and Black hair
Offspring genotypes: RR, RL
6.
Genotypes: BW
Phenotypes: Grey
7.
Black
8.
None of his children will be bald.<span />
6) humans
7) bacteria
8) caterpillars & rabbits
9) trout, and predators
10) It can be overfeeded , and everybody will die sooner or later
