Alexis uses cocaine, which activates her sympathetic nervous system. expecting her dealer, she finds her hands shaking and her heart pounding when she hears a knock on the door. in this scenario, which of the following options correctly identifies the neutral stimulus, the conditioned stimulus (cs), and the unconditioned stimulus (ucs)?

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

Anton created a chart listing different types of materials. which best complete the chart?

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium