Thomas Malthus' influence on Darwin can best be characterized by which of the following?
a. Darwin was convinced artificial selection could work in nature.
b. Darwin realized species typically produce many more offspring than are needed to replace
the parent generation.
c. Darwin was convinced the fate of humanity was dependent on artificial selection.
d. Darwin was convinced the fate of humanity was dependent on natural selection.
e. Darwin was convinced to publish his ideas about natural selection
B
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The respiratory pigment you would find in a blue crab or octopus is
A. hemocyanin. B. hemoglobin. C. hemophilin. D. ferritin. E. calmodulin.
Any cell can present an antigen on a class I major histocompatibility complex (MHC) protein.
a. true b. false
The therapeutic range of an antimicrobial is the
A) ratio of the dose a patient can tolerate to the effective dose. B) range of microorganisms the antimicrobial effects. C) range of concentrations at which the antimicrobial is both effective and non-toxic. D) ratio of the concentration of antimicrobial in the blood to the oral dose. E) length of time the medication persists in the body after a single dose.
Match the following prefixes with their relationship to the standard base unit (g, m, L):
Milli A) 1/100 B) 1/1,000,000 C) 1000 D) 1/1000