Which allele combination represents a female who has a heterozygous sex-linked trait?
0 xry
o xy
0 xrx
o xrxr

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above

All ova contain sex chromosomes corresponding to: x y xx xy

The pelican's beak is adapted for in .