Intermediate filaments are
A) different in different cell types.
B) smaller than actin filaments.
C) composed of tubulin.
D) composed of globular proteins only.
E) none of the above
A) different in different cell types.
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How might the removal of a wetland affect a nearby city?
A. Wetlands support a rich supply of nutrients, so the removal of a wetland would decrease the water quality. B. Wetlands reduce water quality, so the removal of a wetland would improve the water quality. C. Wetlands reduce flooding, so the removal of a wetland would increase the likelihood of the city flooding. D. Wetlands cause flooding, so the removal of a wetland would decrease the likelihood of the city flooding.
Answer the following statements true (T) or false (F)
1. Malpighian tubules of insects secrete rather than filter to eliminate waste products. 2. The filtrate that leaves the proximal convoluted tubule is much more concentrated than the blood in humans. 3. The blood supply to the loop of Henle also exhibits a countercurrent arrangement. 4. Based on phylogenetic analyses of the mineralcorticoid and glucocorticoid receptors and the presence or absence of their ligands (glucocorticoids and aldosterone) in certain vertebrates, it would appear that hormones always evolve prior to their receptors. 5. It would be reasonable to assume that environmental cues such as photoperiod and temperature might regulate animal reproduction.
Your lab instructor hands you a root slide and asks you to show her a cell with condensed chromosomes arranged in a straight line. In which section of the root would you begin your search?
A. It doesn't matter, all zones have the same level of mitotic activity. B. zone of elongation C. zone of maturation D. zone of cell division E. root cap Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about the appearance of root cells in the different zones? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
Disease symptoms are readily measured by health care professionals.
a. true b. false