What explanation might an economist provide why some people smoke cigarettes when such behavior can lead to health consequences? some people likely smoke cigarettes because a. they overestimate the future costs of current choices. b. they overvalue the utility from current choices. c. their preferences are consistent over time. d. they undervalue the utility from current choices. e. they overvalue the utility to be received in the future from not getting lung cancer.

Which type of stimulus do mechanoreceptors detect? sound pain heat light

Which of these internal feedback reactions does not need your brain? oa. your leg jumping when it is hit by a reflex hammer b. your deeper breathing when you need more oxygen c. your body temperature rising when you have an infection d. your heart beating faster when you are in danger

The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the correspondingbones in whales have very different shapes and proportions. however, genetic data suggest that all three kindsof organisms diverged from a common ancestor at about the same time. which of the following is the mostlikely explanation for these data? a) humans and bats evolved by natural selection, and whales evolved by lamarckian mechanisms.b) forelimb evolution was adaptive in people and bats, but not in whales.c) natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.d) genes mutate faster in whales than in humans or bats.e) whales are not properly classified as mammals.