You have inoculated a Clostridium species into a tube of media. After incubation, you observe that there is no growth, and you remember that Clostridium is an obligate anaerobe. What is the best explanation for the observed lack of growth?
A. There is not enough oxygen for use when toxic oxygen is present.
B. There is not enough water in the environment for Clostridium to grow.
C. Oxygen in the medium destroys the enzymes needed by Clostridium to undergo aerobic respiration.
D. Clostridium does not have enzymes to process toxic oxygen.
Answer: D
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a. yeast. b. tuna. c. moths. d. Humans are related to all organisms in this diagram.
The function of the structure labeled 9 is
a. food intake. b. digestion. c. sexual reproduction . d. water discharge. e. asexual reproduction.
Which of the following describes most
accurately the process of DNA cloning?
a. set of laboratory procedures that consist of cutting a segment of DNA with restriction enzymes b. set of laboratory procedures that consist of isolation of a DNA fragment from a living organism and insertion of it into a plasmid c. set of laboratory procedures that uses living cells to make many identical copies of a DNA fragment d. set of laboratory procedures by which a DNA fragment is transferred from a living organism to a SNP chip e. the manipulation of DNA fragments in a laboratory using modern techniques of molecular biology
The kidneys help to maintain blood pressure by monitoring the pH of the blood.
Answer the following statement true (T) or false (F)