The term "organic soup" refers to the ancient oceans before life formed, in which organic molecules such as amino acids accumulated.

a. true
b. false


Ans: a. true

Biology & Microbiology

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The relationship above is

a. a parasitic association. b. predation. c. resource partitioning. d. a mutualistic association. e. none of these.

Biology & Microbiology

Which of the following is an enzyme used in cloning that breaks covalent bonds?

A. DNA ligase B. restriction endonuclease C. reverse transcriptase D. DNA polymerase I E. polynucleotide kinase

Biology & Microbiology

Which two animals have no distinct circulatory system?

a. grasshopper and fish b. grasshopper and hydra c. hydra and fish d. sponge and fish e. sponge and hydra

Biology & Microbiology

Which of the following is a plant-derived ingredient that served as one of the world’s first antimalarial drugs?

a. digitalis b. aspirin c. quinine d. ephedrine

Biology & Microbiology