Cephalopods such as squid and octopi can communicate by changing skin colors and sometimes even skin patterns. this type of communication is an example of a a.) aggression b.) territorial defense c.) courtship* d.) language

What causes darkening of the skin as melanin production increases

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition.b) one-fourth of the daughters of an affected man would have this condition.c) one-half of the daughters of an affected father and a carrier mother could have this condition.d) only if a woman is xxx could she have this condition.

What is the key to the recognition of codominance?