Relatedness
Use the phylogenetic tree to the right to choose the true statement below.

Crocodiles are more closely related to amphibians than to primates.

Ray-finned fish evolved before sharks.

Rodents and rabbits are most closely related to primates.

Amphibians are more closely related to ray-finned fish than to primates.

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.