A pseudostratified epithelium is composed of _____
A) a single layer of cells of variable height
B) a hierarchical arrangement of flat cells
C) a tight layer of square cells attached to a basement membrane
D) alternating layers of thick and thin cells
E) a stacked layer of ciliated, mucus-secreting cells
Answer: A
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Marine wetlands (salt marshes) are highly productive coastal ecosystems that produce a lot of organic carbon, similar to freshwater wetlands; however, salt marshes smell very different than freshwater wetlands
What nutrient cycle is different between the two ecosystems that causes this difference in smell? What will be an ideal response?
During a viticulturist's presentation on growing and managing grapes, why did he state that it is imperative to encourage the grapevine's natural tendency for positive thigmotropism?
A. To encourage the vine's response to move toward the early morning light as opposed to the late afternoon sun. B. To encourage the roots to grow deeper and spread out. C. To encourage the grapes to retain their sugar for a longer period of time. D. To encourage the twining stems to wrap around the supporting wires. E. To discourage early ripening of the fruit. 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 plant growth and thigmotropism? 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?
Cultured skin lacks which of the following?
a. melanocytes b. sweat glands c. oil glands d. other differentiated structures e. all of these
The first step of the scientific method is to ____
a. perform an experiment b. make a prediction c. test a prediction d. analyze data e. observation of a natural event