Why are the cells in a multicellular organism organized into tissue

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

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.

We all have different forms of genes from our parent(s).what are these different forms called? a.alleles b.characters c.dna d.resources