Which situation is most likely to involve the action of a pheromone?
a. Albatrosses showing courtship behavior
b. A prairie dog emitting a loud yelp
c. The chirping of a cricket
d. Urine of a male mouse attracting a female
e. A male collared lizard showing his large mouth

answer; ///i believe that the correct answer is (a) specialized cells)

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.