The function of vertebrae is to
A. protect the brain.
B. protect the nerve chord.
C. protect the nerve cord and provide attachment points for muscles.
D. provide attachment points for muscles.
E. protect the brain and nerve cord.
C. protect the nerve cord and provide attachment points for muscles.
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Mole percent (G+C) of DNA is useful for determining relatedness at the ________ level.
A. class B. genus C. kingdom D. None of the choices are correct.
What term describes all alleles of all the genes in a population?
a. genome tree b. genetic family c. gene reservoir d. gene pool e. allele collection
In what way could marine invertebrates that scatter gametes in the water prevent the sperm from one species from fertilizing the eggs of another species?
a. by preventing the sperm from binding to or entering the egg of another species b. by preventing the resulting hybrids from passing on their genetic material to offspring c. through behavioral isolation d. through geographic isolation e. by preventing the resulting hybrid from surviving
Describe the difference between homologous and analogous structures in organisms, and give an example of each
What will be an ideal response?