Traditionally, an unknown bacterium is classified
based on all the following EXCEPT
a. observable characteristics.
b. shape.
c. cell wall structure.
d. metabolism.
e. sexual partners.
Answer: e
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The portion of a mushroom that you typically eat is
a. the fruiting body. b. the reproductive structure. c. the chytrid sac. d. both the fruiting body and the reproductive structure.
The structure designated by the letter "A" in
the above figure is called a. pyloric sphincter. b. esophagus. c. mucosa. d. duodenum. e. none of these.
Of the two types of glands, the ________ glands secrete their products onto body surfaces or into body cavities or organs via ducts
Fill in the blank(s) with correct word
How do humans use red algae polysaccharides?
A. Adhesives B. Detergents C. Thickeners D. Herbicides