Which of the following is an endothermic process?
A) combustion reactions
B) adding a strong acid directly to water
C) oxidation of metals
D) ice melting
E) neutralization reactions of the addition of strong acid directly to a strong base
C) oxidation of metals
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All protists are _____
A) unicellular B) eukaryotic C) symbionts D) monophyletic E) mixotrophic
Rubisco has 16 subunits joined together to make a functional unit. Eight of the subunits are large, the
other 8 are small. Where on this enzyme are the active sites located?
a. on each of the 8 large subunits b. on each of the 8 small subunits c. on one of the 8 large subunits d. on one of the 8 small subunits e. on each of the 16 subunits
Normal bacterial inhabitants of the human body
a. are naturally resistant to antibiotics. b. are able to out-compete some invading pathogens and thus are one of the body’s initial defense mechanisms. c. can be transformed into pathogenic forms if a person’s resistance to disease is low. d. are unable to survive the human body’s defense mechanisms. e. are able to out-compete some invading pathogens and thus are part of the body’s innate immunity.
Low-nutrient, oligotrophic waters will usually become stratified and have an anaerobic hypolimnion at certain times of the year.
Answer the following statement true (T) or false (F)