Which example involves a cell membrane receiving and sending messages? a. the cell membrane prevents glucose from entering a cell. b. cells of an organism tell each other when predators are near. c. a transport protein allows a large molecule to enter a cell. d. an enzyme acts as a catalyst for a reaction on a cell membrane.

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.

Which of the following situations describes a adaptation for a mole? question 2 options: a mole is blind and cannot see underground. a mole is bright and attracts the attention of predator birds. a mole has a sensitive sense of smell to it find food underground.

Which type of landforms forms at the plate boundary as a result of divergent stress