What term describes molecules that are intermediate between inorganic compounds and living organisms?
A)protobionts
B)proteinoids
C)bacteria
D)amino acids
E)monomers
A
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Upon entering the body, are drugs gradually oxidized or reduced?
A. Drugs are not oxidized or reduced. They are simply metabolized. B. The drugs are broken down, or reduced to smaller products during the metabolic process. C. The body's mechanisms for oxidizing foods act on drugs causing them to be oxidized as well. D. Some drugs are oxidized and some are reduced, depending on the type of drug ingested.
Which of the following does NOT determine soil properties?
A) parent materials and biological activity B) climate and time C) topography D) weathering
A student was asked the following question: What are the environmental factors that determine the
development of soils, and which are the most important regarding the rate of development? As an answer, the student wrote the following, "The environmental factors that determine the development of soils are climate, parent material, relief of the land, and time. Climate and parent material are the most important factors for the rate of soil development." How would you judge this student's answer? a. EXCELLENT (The response answers both parts of the question, and all statements are complete and correct.) b. VERY GOOD (The response answers both parts of the question, all statements are correct, but one part is not answered completely.) c. GOOD (The response only answers one part of the question, all statements are correct, but the other part of the question is not answered.) d. MEDIOCRE (One part of the question is answered completely and correctly, but the other part is answered incorrectly.) e. UNACCEPTABLE (The response does not correctly answer either part of the question.)
Contact freezing is
a. ?the freezing of supercooled droplets by contact with a nucleus. b. ?the sticking together of ice crystals to make a snowflake. c. ?the joining of many nuclei to form an ice nucleus. d. ?the freezing of supercooled droplets when they come into contact with a supercooled surface. e. ?the sticking together of any type of nucleus.