An inoculated thioglycolate medium culture tube is clear throughout the tube except for dense growth at the bottom of the tube. What is your conclusion?
A. The organisms are obligate anaerobes.
B. The organisms are facultative anaerobes.
C. The organisms are aerotolerant.
D. The organisms are obligate aerobes
Answer: A. The organisms are obligate anaerobes.
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When fats are used as an energy source, the glycerol portion enters ________ when it has been converted to ________
A) the citric acid cycle; pyruvate B) glycolysis; fructose-6-phosphate C) the citric acid cycle; acetyl CoA D) the electron transport system; coenzyme Q E) glycolysis; dihydroxyacetone phosphate
Taxonomists tend to use the __________ to characterize species for classification
a. morphological species concept b. biological species concept c. evolutionary species concept d. ecological species principle e. genetic species principle
A(n) ________ is an abnormal mass of tissue that is surrounded by a capsule of connective tissue and usually remains at the site where it forms
Fill in the blank(s) with correct word
The summing up of nerve signals by ________ is called ________.
A. sensory receptors, integration B. sensory receptors, sensation C. the cerebral cortex, sensation D. the cerebral cortex, perception E. the reticular activating system, perception