Spontaneous contractions of the heart muscle begin in the ________
Fill in the blank(s) with correct word
sinoatrial node
Biology & Microbiology
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Which of the following is NOT characteristic of a coliform?
A) facultatively aerobic B) gram-negative C) rod shaped D) resistant to chlorination
Biology & Microbiology
Thin films of bacteria that have been air-dried onto a glass microscope slide are called ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
The use of organisms to develop useful products is called:a
bioengineering. b. in vitro gene technology. c. biotechnology. d. recombinant DNA technology. e. genetic engineering.
Biology & Microbiology
Organisms able to make food molecules from inorganic materials and sun energy are
A. autotrophs. B. aerobic. C. anaerobic. D. heterotrophs.
Biology & Microbiology