Which of the following is a characteristic of most non-metals and is not a characteristic of most metals?
A. Has a negative charge when a current is run through its solution
B. Can conduct electricity and heat
C. Is malleable and ductile
D. Replaces the hydrogen in acids to form stable compounds
Ans: A. Has a negative charge when a current is run through its solution
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A gram-negative bacillus that is hydrogen sulfide (H2S)-positive, citrate-positive, spot in-dole–negative, and associated with gastroenteritis in the United States is most likely:
a. K. pneumoniae. b. P. vulgaris. c. Salmonella enteritidis. d. S. sonnei.
What type of thinking is required?
What will be an ideal response?
The scientific names of organisms continue to be written in Latin because
a. Latin invented the system. b. Latin is universally understood. c. Latin doesn't change as other languages change. d. it is easier to learn Latin than most other languages.
The study of the interrelationships of plants and animals with each other and with their environment is known as
Select one: a. a trophic level. b. a food web. c. a habitat. d. a biosphere. e. ecology.