What type of evidence for the theory of common descent would include the presence of goose bumps in humans?
A) vestigial structures
B) homologous structures
C) shared developmental pathways
D) DNA similarity
A
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A study of a cohort of 1,000 animals showed a
90 percent death rate per individual in the first year, 10 percent the second year, and 5 percent the third year. This population's survivorship is a. type I. b. type II. c. type III. d. type I the first year and type II in years two and three. e. type I the first year, type II the second year, and type III the third year
Components of the central nervous system include (check all that apply)
A. projection of neuron from spine to muscle cell. B. brain. C. nerve cord. D. spinal cord.
Explain how epigenetics works.
What will be an ideal response?
Aerosols may be involved in ________ transmission of pathogens
A) droplet B) direct C) vector D) fecal-oral E) waterborne