Which increases when water freezes: its mass or its volume?
its mass
its volume
HEL!

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.

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture

Evolution acts upon the population of organisms and not on each individual organism