In Guinea pigs, the allele for short hair is dominant. Two short haired guinea pigs are mated several times. Out of 100 offspring, 50 of them have long hair. A. SS & ss
B. Ss & SS
C. both SS
D. both ss

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.  

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.

i think the answer is a.keratin is the pigment responsible for skin color.

answer australia and antarctica;