Megan looks up at the night sky. she counts 20 stars that appear to be directly overhead. how many of these stars will appear to have rotated in a circle from east to west through the night? a. none of them b. ten of them c. all of them d. five of them

What are the similarities between photosynthetic and anaerobic organisms?

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

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.