An invasive plant species takes over an aquatic ecosystem. which scenario is likely to cause the ecosystem’s collapse?

a. the native herbivores are not able to eat the new plant.
b. the tertiary consumers adapt well to the invasive plant.
c. the original producers survive, but the population is larger.

Which one of these is a involving in both sexual and asexual reproduction

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

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.