The notochord has a similar function to the
a. nervous system.
b. spinal cord.
c. skeletal system.
d. skin system.
e. muscle system.
Answer: c
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Jawless fishes were the first vertebrates to leave fossil evidence during the _____ period.
A. Cambrian B. Devonian C. Carboniferous D. Silurian E. Ordovician
In the creation of a DNA profile, what type of DNA is used?
A. Microsatellites D. Transposons B. Short tandem repeats E. Fragment length polymorphisms C. Introns
During which substage of mitosis do sister chromatids break apart and start moving to opposite poles of the cell?
A. Metaphase B. Prophase C. Telophase D. Anaphase
Darwin proposed that living species are descended, with changes over time, from common ancestors. This idea is called...
a) natural selection b) adaptation c) variation d) descent with modification