According to the evolutionary perspective, why do dolphins have fins while cows have legs?
A) Cows are mammals while dolphins are not.
B) Cows are vertebrates and dolphins are invertebrates.
C) Fins are better suited to an underwater environment.
D) Dolphins are too heavy to be able to walk with legs.
Answer: C
You might also like to view...
Fill in the missing words using the options given. Methodological problems exist within many RCTs that compare NRT to (2) ______. This is because smokers in the (3) ______ condition can detect that they are not receiving any (4) ______ (Mooney, White, & Hatsukami, 2004; Polito, 2008). Dar, Stronguin and Etter (2005) found that (5) ______ group members were 3.3 times more likely to correctly guess that they had received placebo than to incorrectly guess that they had received nicotine (54.5% v. 16.4%). If the trials in a RCT are not (6) ______, the findings give a misleading picture of treatment effectiveness. Which word is a best fit?
A. nicotine B. control C. double blind D. placebo
Terri shows inactivity, sleepiness, slowness, and has gained weight. A problem was found in her endocrine system. She most likely has a(n)
a. overactive thyroid gland. b. underactive thyroid gland. c. adrenal gland virilism. d. complication of anabolic steroids.
What are the five main ways in which a functional family nurtures school-age children? In which area did your family do the best? The worst?
What will be an ideal response?
Stimulus generalization gradients demonstrate that
a. human behavior is not very adaptive. b. the most important attribute of a CS is its intensity. c. less time is necessary to reacquire a response than to acquire it originally. d. the more similar a stimulus is to the original CS, the stronger a CR will be.