Which two photos best show waves being transmitted through matter? (I don't have a picture, if you're taking/took the test, you'd know)

A and D

Explanation:

The picture of the person in water and the guy with the cup.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.