What is the process component of the theory of chemical evolution?
A) Acid-base reactions resulted in the formation of large, complex organic molecules.
B) Kinetic energy was transformed into chemical energy.
C) During polymerization reactions, hydrolysis was completed with condensation.
D) The process occurred at black smokers, in the atmosphere and oceans, or in outer space.
Answer: B
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The difference between latex agglutination and coagglutination is:
a. the type of particle used to carry the anti-body. b. the type of target organism involved. c. that coagglutination is less specific but more sensitive. d. that coagglutination, not latex agglutina-tion, can be used for direct antigen detec-tion.
Which of the following layers lies next to the lumen
of the intestinal tract? a. longitudinal muscles b. circular muscles c. submucosa d. mucosa e. serosa
Two major types of protein secondary structures are referred to as:
a. amino and carboxyl. b. ? helix and ? sheet. c. elementary and primary. d. residual and permanent. e. ionic and covalent.
Small, random genetic changes that occur over generations is known as ________.
A. progenesis B. microgenesis C. anagenesis D. degenesis