25. E1, E2, ubiquitin, ATP, and both native and heat-inactivated (denoted by an asterisk, *) GST-ARD1 (1-574), GST, and GST-cytohesin-1 (C-1) were mixed and run on a gel. A western blot was performed with an anti-ubiquitin antibody. a. Based on these results, what three proteins are required for ubiquitination

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.