Compare and contrast the function of the external epithelium and its derivatives in invertebrates and
vertebrates. What will be an ideal response?
Concepts to Consider: The epithelium as the outer, protective covering in animals. Invertebrates:secretion
of an outer protective covering such a cuticle or shell. Vertebrates: gives rise to the
integumentary system, including the skin. Derivatives of the skin include scales, hair, feathers, claws,
glands, and sensory receptors.
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The difference between an overt and a covert bioterrorism event is that a(n):
a. covert event is one that is carried out against undercover agents. b. covert event is announced, and an overt event is not announced. c. overt event is announced, and a covert event is not announced. d. overt event is one that is carried out in the air.
Imagine an earthworm that has no chaetae. How would the lack of chaetae affect movement of the earthworm?
A. The earthworm would have difficulty changing locations, since it cannot anchor itself in the soil. B. The earthworm would be much flatter than normal since it has no hydrostatic skeleton. C. The earthworm would only be able to extend its body segments. D. The earthworm would only be able to shorten its body segments. E. The earthworm would not be able to move at all. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the function of chaetae? 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?
REM is the pattern of the EEG associated with being wide awake
Indicate whether the statement is true or false.
This technique has thousands of DNA sequences on a slide and is used to determine which are active at the time
A) PCR B) microarray C) translation D) recombinant DNA