In humans, long toes are dominant over short toes. A female heterozygous marries a short toed male. They have four children. Predict the ratio of long to
short toes in the children,

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )

c.           is the correct answer

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