Sutherland and colleagues demonstrated the synthesis of which one of the following under conditions thought to resemble those of early Earth?
A. nucleotides
B. amino acids
C. phospholipids
D. nucleic acid chains
E. polypeptides
Answer: A
Biology & Microbiology
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Which of the following is a protective layer of cell envelope?
A. Pilus B. Glycocalyx C. Ribosome D. Fimbria E. Nucleoid
Biology & Microbiology
Grasses, palms, and orchids are examples of eudicots
a. True b. False
Biology & Microbiology
Shredders, collectors, and small predatory fish such as sculpins, darters, and trout are the dominant organisms collectively found in
A) estuaries. B) small headwater streams. C) medium-sized streams. D) large rivers.
Biology & Microbiology
The fly agaric, a giant toadstool, consumes dead organic material, so it is said to be a(n) ________
Fill in the blank(s) with correct word
Biology & Microbiology