The gene for curled ears (C) is dominant over the gene for straight ears (c). If a cat with curled ears (Cc) and a cat with straight ears (cc) are crossed, what percentage of the offspring are expected to express the dominant trait, curled ears? 25%

50%

75%

100%

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

the supermassive black hole is in the middle of the galaxy.

age range would be the answer

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.