What are the principal structural components of cilia and flagella?

a. intermediate filaments
b. myosin microfilaments
c. actin microfilaments
d. microtubules


Ans: d. microtubules

Biology & Microbiology

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A scientist performs an experiment in which they create an artificial cell with a selectively permeable membrane through which only water can pass. They inject a 5M solution of glucose into the cell and then place the cell into a beaker containing 10M glucose. What effect do you expect to observe?  

A.  Water moves out of the cell B.  Glucose moves out of the cell C.  No net change in cell weight D.  Water moves into the cell E.  Glucose moves into the cell 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 know about osmotic concentration? 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?

Biology & Microbiology

Medically, cortisol may be administered to help relieve inflammation.

a. true b. false

Biology & Microbiology

The organization of tissues in Figure 34-2 is characteristic of:

a. a stem. b. a spine. c. a leaf. d. a bulb. e. a bud scale.

Biology & Microbiology

The most important role of meiosis in sexual reproduction is

What will be an ideal response?

Biology & Microbiology