Which of the following is a protective structure where egg cells are formed in bryophytes and some other plants?
a. stoma
b. strobilus
c. sporangium
d. archegonium
Answer: d. archegonium
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A person has his/her gall bladder removed and as a result ______ .
A. can only eat liquid meals B. can only eat small amounts of fat C. can now eat as much fat as desired and not absorb it D. can only eat very small meals E. will die without a gallbladder 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 the gall bladder? 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?
Which of the following lipids is found concentrated in lipid rafts in animal cell plasma membranes?
A) cholesterol B) phosphatidylcholine C) phosphatidylserine D) phophatidylethanolamine E) phosphatidylinositol
When an organism dies, its muscles remain in a contracted state termed rigor mortis for a brief period of time. Contributing most directly to this phenomenon is
A. the lack of calcium to bind to troponin. B. the absence of an oxygen supply to muscle. C. the inability to synthesize actin and myosin. D. the lack of ATP to break cross-bridges between thick and thin filaments.
Which of the following is the best answer for why plants require nitrogen?
A. to make membranes B. to make cell walls C. to make chlorophyll D. to make amino acids and nucleotides