What are Koch’s postulates?
a. A set of rules on how to treat a disease
b. A set of theories that explains how a bacteria can cause a disease
c. A set of rules that provide a classification system of disease-causing bacteria
d. A set of guidelines to follow in order to isolate a particular bacteria from an infected organism
e. A set of guidelines to demonstrate that a specific pathogen causes specific disease symptoms
e
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An organism that has two different alleles for a given trait is said to be:
A. diploid. B. heterozygous. C. homozygous dominant. D. heterozygous dominant. E. homozygous recessive.
What is one reason that invasive species such as the brown tree snake in Guam are often so successful in their new habitat?
A. They are better adapted to winter conditions. B. They are unable to full partition existing resources. C. Potential prey animals have evolved defenses against it. D. The species has no natural predators to control it. E. Such a species is typically a Batesian mimic.
The amount of air that remains in the lungs after a forced exhalation is called _________________
Fill in the blank(s) with the appropriate word(s).
Which species name means “upright man”?
a. Homo erectus b. Homo habilis c. Australopithecus afarensis d. Homo floresiensis e. Neanderthals