Fossils are found only in
a. metamorphic rocks.
b. igneous rocks.
c. sedimentary rocks.
d. crystalline rocks.
e. radioactive rocks.
C
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Margarine is made by hydrogenating vegetable oils so that they take on the consistency of butter. Propose a chemical basis for this change from a liquid to a solid.
A. Hydrogenation of fats changes them from saturated to unsaturated, which are more solid. B. Trans-fatty acids are changed from unsaturated to saturated, allowing them to solidify. C. Trans fatty acids are changed from saturated to unsaturated, allowing them to solidify. D. Hydrogenation of fats changes them from unsaturated to saturated, which are more solid. 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 the effect of saturation on the consistency of a fat? 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?
Some enzymes are controlled by having
nonsubstrates bind to a nonactive site and result in a change in their overall structure; these are called __________. Fill in the blank(s) with the appropriate word(s).
When cells begin to move in the embryo in relation to other cells, this is called
A. growth. B. cleavage. C. morphogenesis. D. fertilization. E. differentiation.
Microbial genomics is a rapidly growing field. Of great interest to geneticists is the search for new operons as new microbial genome sequences become available
What kind of "signature" or identifying feature would you look for as you searched new genomes for candidate operons?