The only group of plants that produce flowers are the ____
a. horsetails
b. ferns
c. bryophytes
d. angiosperms
e. gymnosperms
ANSWER: d
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Alexander Fleming kept finding mold contamination that was killing his bacterial cultures. This observation eventually lead to the development of the antibiotic penicillin. Why would a fungus produce a compound that is selectively toxic to bacteria?
A. Fungi eat bacteria. B. Fungi are killed by bacterial toxins. C. Fungi compete with bacteria for resources. D. Killing bacteria is an accident. 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 fungi and bacteria? 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?
How does an electromyograph (EMG) measure muscular contraction?
What will be an ideal response?
Schleiden and Schwann stated the "cell theory," which in its modern form says
A. all cells will arise spontaneously, all cells require oxygen, and all cells are composed of one or more cells. B. all organisms are composed of one or more cells, all cells arise spontaneously, and all cells vary in size and shape. C. all organisms are composed of one or more cells, all cells are the smallest living things, and all cells arise by division of other cells. D. all organisms are composed of one or more cells, all cells require oxygen, and all cells arise by division of other cells.
What number are the Porin proteins?
What will be an ideal response?