Which of the following statements is true about all members of a species? a. they are seasonally isolated from each other
b. they are geographically isolated from each other
c. they can reproduce and produce fertile offspring
d. they have identical genes
Please answer quickly!!!

Which of the following is true about the introduction of a non-native species to an environment? (a) they usually adapt quickly so they can have a positive affect on the environment. (b) they can disrupt the environment and cause much damage and devastation to native species. (c) they usually become predators in a food chain and to keep prey populations under control. (d) because the native species are better-adapted to the environment, the non-native species always end up dying out.