Nonspecific defenses against disease include all of the following EXCEPT
A. complement.
B. skin and mucous membranes.
C. natural killer cells.
D. inflammatory reaction.
E. antibodies.
Answer: E
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Olfactory neurons first transmit their action potential to the central nervous system structure called the
A. cerebellum. B. amygdala. C. accessory olfactory bulb. D. olfactory bulb. E. cerebral cortex.
The use of bovine growth hormone (BGH) to increase milk yield in dairy cows is highly controversial. What other hormone is regularly added to milk, yet causes little controversy?
A. vitamin A B. vitamin D C. MSG D. preservatives Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about hormones? 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? Reflect 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?
Define the terms restriction enzyme and ligase, and describe how these enzymes are used in recombinant DNA
technology. What will be an ideal response?
An important part of maintaining homeostasis is regulating the amount of water released or absorbed by the body. Which two systems mainly work together to perform this function?
a) circulatory and respiratory systems b) digestive and excretory systems c) digestive and respiratory systems d) circulatory and digestive systems