4. The diagram below illustrates the release of chemical A from a human cell in response to a specific stimulus. Which cell structure plays a direct
role in the release of this chemical from the cell? *

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

Nucleic acid certain protein cell membranes certain carbohydrates

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.