What are the fundamental resources required to support life?
A) Nutrients, oxygen, sugar, appropriate temperatures
B) Oxygen, carbon, nitrogen, water
C) Water, nutrients, energy, appropriate temperatures
D) Water, energy, oxygen, nutrients
E) Oxygen, water, energy, carbon
C
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According to Woods, the key to understanding feelings of hunger is to appreciate that eating meals:
(a) results in satiety (b) stresses the body (c) often leads to a conditioned aversion (d) satisfies the body
Which term refers to a bacterial protein that causes disease only after the cell has been disrupted?
a. endospore b. heterocyst c. endotoxin d. exotoxin
A solution that contains an excess of protons is(are)
A. hydroxide ions. B. an acid. C. a base. D. the pH.
Why isn't mitochondrial DNA a unique identifier?
A. Mitochondrial DNA is inherited through the maternal lineage. All offspring inherit their mother's mitochondria and therefore the same mitochondrial DNA. As a result, all family members that share a maternal lineage would have the same mitochondrial DNA. Mitochondrial DNA can therefore be used to confirm or eliminate a person's relationship within a maternal line, but cannot be used to identify a specific individual. B. Mitochondrial DNA is inherited through the maternal lineage. All female offspring inherit their mother's mitochondria and therefore the same mitochondrial DNA. As a result, all female family members that share a maternal lineage would have the same mitochondrial DNA. Mitochondrial DNA can therefore be used to confirm or eliminate a person's relationship within a maternal line, but cannot be used to identify a specific individual. C. Mitochondrial DNA is inherited through the paternal lineage. All offspring inherit their father's mitochondria and therefore the same mitochondrial DNA. As a result, all family members that share a paternal lineage would have the same mitochondrial DNA. Mitochondrial DNA can therefore be used to confirm or eliminate a person's relationship within a paternal line, but cannot be used to identify a specific individual.