The aspect of human evolution in which the genes microcephalin and ASPM have been implicated is the
A. evolution of our large frontal cortex.
B. evolution of language.
C. evolution of bipedal locomotion (walking upright).
D. evolution of an opposable thumb.
E. the evolution of mother-infant bonding
A. evolution of our large frontal cortex.
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Mutation rates:
A. are higher in organisms with larger genomes. B. are similar across all organisms. C. are highest in viruses. D. are lower in organisms with larger genomes. E. are highest in the bacteria.
Collectively, what did the work of Charles Darwin, Francis Darwin, and Fritz Went demonstrate about phototropism in plants? Select all correct choices
A. A chemical signal is produced in shoot tips in response to light. B. A chemical signal is produced in shoot stems in response to light. C. Cells exposed to a chemical signal produced by light will grow (elongate). D. Cells exposed to a chemical signal produced by light will not grow (elongate).
The most common etiologic agent of community-acquired pneumonia in adults older than 30 years of age is ___ pneumoniae
a. Mycoplasma b. Chlamydophila c. Streptococcus d. Klebsiella
DNA is coiled into a tight spiral and makes up the ____________ that are the genetic material in a cell
a. genes b. amino acids c. enzymes d. nucleus e. chromosomes