What trait is exhibited only in Homo sapiens and not in other primates in existence today?
A. symbolic language
B. opposable thumb
C. tool use
D. bipedalism
Answer: A
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Norton Zinder and Joshua Lederberg discovered transduction in experiments with ____
a. Escherichia coli b. Neurospora c. Aspergillus d. Salmonella typhimurium e. Streptococcus pneumoniae
Detritus specifically includes:
a. exclusively organic wastes b. exclusively toxic materials c. small bits of decaying organic matter d. living bacteria and fungi e. toxic wastes and small bits of decaying organic matter
The number of individuals of a species that can be sustained indefinitely by the resources in a given area is the ____
a. carrying capacity b. limiting factor
c. peak capacity d. density e. potential
Homologous structures, such as arms, wings, and fins, are constructed from the same basic bones and are adapted to locomotion in different environments. Which idea do such structures support?
a) inheritance of acquired traits b) descent with modification c) tendency toward perfection d) artificial selection