The matrix of connective tissue can be liquid, gel-like or solid.
a. true
b. false
Answer: a. true
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A 7-year-old girl was at summer camp and dove into the lake many times. She complained that water went up her nose a few times. Several days later she is unresponsive and comatose and rushed to the hospital. A cerebrospinal fluid (CSF) specimen is drawn, and several motile amebae are observed. She is most likely suffering from an infection with which of the following pa-rasites?
a. Plasmodium vivax b. Naegleria fowleri c. Ascaris lumbricoides d. Hymenolepis nana
In systemic acquired resistance, the regulatory protein NPR-1 moves from the cytoplasm to the cell nucleus,
apparently in response to a buildup of ____ in the cytoplasm.
a. ethylene b. brassinosteroids c. oligosaccharins d. jasmonates e. salicylic acid
What lab tests would you order to find the source of the problem?
Cushing's syndrome causes weight gain, excessive sweating, and muscle weakness. It can result from either the production of abnormally high levels of cortisol by the body, or overuse of glucocorticosteroid drugs. You are an endocrinologist working with a Cushing's syndrome patient. She is on hormonal birth control pills and takes an occasional ibuprofen. A. cortisol, LH, and FSH B. None -- the birth control pills include corticosteroid hormones. She should switch to another form of birth control. C. cortisol, ACTH, and CRH D. cortisol and ACTH 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 cortisol? 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?
Matching. Choose the most appropriate answer for
each. 1. ___ camouflage 2. ___ commensalism 3. ___ competitive exclusion 4. ___ habitat 5. ___ mimicry 6. ___ mutualism 7. ___ parasitism 8. ___ primary succession 9. ___ climax community 10. ___ secondary succession 11. ___ succession A. blending in and being hidden by the background B. where an organism is generally located in a community C. one organism benefits at another organism’s expense D. traditionally a self-sustaining array of interacting organisms that is best suited for a particular environment E. lichens on newly hardened, newly cooled lava F. robins and human populations G. the yucca moth and the yucca H. one species is eliminated from an area of niche overlap I. tasty species resembles repugnant one J. the process that leads from a pioneer community to a mature community K. natural reforestation of burned-over forest