The foramen magnum is located in which bone of the skull?
What will be an ideal response?
occipital
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Which organisms are common soil decomposers that grow in colonies of branched chains of cells that superficially resemble a fungus?
A) actinomycetes B) cyanobacteria C) proteobacteria D) cocci
The situation in which an active regulatory protein "turns off" gene expression is an example of
A) a mutation. B) positive control. C) negative control. D) constitutive gene elements. E) unique regulation.
Which of the following is NOT evidence that supports evolutionary theory?
A. fossil links between species B. vestigial structures C. analogous structures D. embryonic development E. shared DNA sequences
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).