Enviroment factors can influence natural selection because they can increase or decrease
a) the number of chromosomes in an individual.
b) the number of chromosomes in a population.
c)the amount of genetic variation in an individual.
d) the amount of genetic variation in population.

Did you know that a blue wales tongue weighs more than an elephant?

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it

In sweet pea, gene c is responsible for color production and gene p is responsible for the purple color pigment. both of them are located on two different loci on different chromosomes. the flowers will be purple only when the plant has the genotypes as c_p_. no color will be produced with genotypes: ccpp, ccpp, ccpp, ccpp. thus, gene c controls the expression of gene p. what pattern of inheritance is exhibited here? a. pleiotropy b. epistasis c. multiple alleles