The biologist responsible for the formulation of the endosymbiotic theory is Dr. Lynn Margulis.
a. true
b. false
Ans: a. true
Biology & Microbiology
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Water is the least dense when it ________.
A. is frozen B. is just below boiling C. is at room temperature D. is just above freezing
Biology & Microbiology
Select the pair in which the nitrogenous waste is INCORRECTLY matched with the benefit of its excretion.
A. urea: low toxicity relative to ammonia B. uric acid: can be stored and excreted as a precipitate C. ammonia: very soluble in water D. uric acid: minimal loss of water when excreted E. urea: very insoluble in water
Biology & Microbiology
Kovac's reagent is used in
A. Methyl red test B. Indole test C. Catalase test D. Nitrate test E. Voges-Proskauer test
Biology & Microbiology
What is the major function of the colon?
A. to churn food B. to form feces C. to digest/absorb D. to eliminate iron E. to serve as a passageway only
Biology & Microbiology