Polyploidy : a. is a type of sympatric speciation.
b. occurs in 95% of ferns.
c. results from an increase in chromosomes.
d. occurs naturally in about 50% of all plant species.
e. All the answer choices are correct.

Individuals do not compete directly for resources, but are prey for the same predator

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

How does the carbon cycle involve an exchange of carbon