Which region of the brain helps regulate body temperature, endocrine activity, and water balance?
A) Medulla
B) Thalamus
C) Cerebrum
D) Hypothalamus
E) Cerebellum
D
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One spring, your friend living in Minnesota eagerly sets up her new hummingbird feeders, and is thrilled to watch hummingbirds feeding on the nectar. However, she is disappointed when after just a week or two the hummingbirds disappear. What advice would you give her?
A. Set up a bell (conditioned stimulus) near the feeders so the hummingbirds make an association with the food. B. Set up flashing red lights that mimic the male neck feathers -- that should attract more males to the area. C. Set up the feeders again in the fall. The hummingbirds may have briefly traveled through during their annual spring migration. D. Wait till next year -- hummingbirds are a high-metabolism, semelparous species and have already reproduced and died. Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gathering Content: What do you already know about feeding behaviors in birds? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The hearts of a fetal pig and a human are similar in that they are
a. the primary pump of the circulatory system of the body. b. both four chambered. c. composed of cardiac muscle tissue. d. all of the above.
At the milestone that defines anaphase, the chromosomes
a. separate. b. come together. c. are at opposite poles. d. line up. e. cross over.
Answer the following questions true (T) or false (F)
1. Both men and women make testosterone. 2. Wax is a lipid. 3. Lipids with carbon-carbon double bonds tend to be more solid at room temperature.