Question 7 of 30 Which of the following is the best definition of an ecosystem?
O A. A system formed by the interactions of all of the living things
within an area
B. A system formed by the interactions of organisms of the same
species that live in the same area
C. A system formed by the interactions of living organisms with the
nonliving physical environment
D. A system formed by the interactions of all of the nonliving things
that exist in the same area

The lionfish is a venomous fish found primarily in the red sea and the indian ocean. in the 1990s, lionfish were accidentally released into the atlantic ocean, where they found abundant resources and favorable environmental conditions. which of the following scenarios is most likely to result in the lionfish having a major impact on the communities into which they were introduced? (a) with no natural predators, the lionfish population will become very large. (b) some native species of invertebrates will develop a resistance to lionfish venom. (c) random mating will allow the lionfish population to reach hardy-weinberg equilibrium. (d) a virus that specifically infects lionfish