how do living things alter the biotic and abiotic envierment to cause the process of successtion? 1. lichens and small plants produce soil that allow larger plats to grow 2large trees produce shade and complete for recouses with smaller plants, causing a redusion in their in their population

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.