Enzymes are a type a _____, which reduces the activation energy of a chemical reaction.
Fill in the blank(s) with the appropriate word(s).
Ans: catalyst
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What was a significant outcome of the Miller and Urey experiment?
a. They demonstrated natural selection. b. They were the first to synthesize living cells. c. They proved that life did not originate on Earth. d. They proved that the iron-sulfur world hypothesis was false. e. They synthesized organic molecules from inorganic materials.
What phylum do spiders bees, ticks and pill bugs belong to?
A. Arachnida B. Arthropoda C. Chelicerata D. Crustacea E. Malacostraca
The protein coat of a virus is called the:a
capsule. b. capsid. c. exospore. d. phage. e. pilus.
The Pentose Phosphate Pathway
a. is a part of photosynthesis. b. is an example of catabolism. c. is an example of anabolism. d. is another name for fermentation.