Which of the following scenarios involves the introduction of a potentially invasive species? I. The migration of spiders in fruit shipped to the United States from South America
II. The escape of a rattlesnake from a zoo exhibit
III. Picking flowers while on vacation in California and planting them in your garden in Texas
Answers: I and II only. I and III only. II and III only. I, II, and III

What was the land like over 500 million years ago? what was under the sea?

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

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.