The flea is the vector that carries the Yersinia bacterium from animal to animal, causing _______ plague.
A) Septicemic
B) Bubonic
C) Pneumonic
D) Drug-resistant
B) Bubonic
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This cytoskeletal structure is composed of actin and regulates cell shape, cell movement, and muscle contraction.
A. microfilaments B. intermediate filaments C. microtubules D. both microfilaments and intermediate filaments E. both microfilaments and microtubules
Which of the following provides the specificity of the CRISPR/Cas gene editing system?
A. an antibody-like region of the Cas nuclease B. the guide RNA (crRNA) carried by the Cas nuclease C. the amino acids at the amino terminus of the Cas nuclease D. the amino acids at the carboxyl terminus of the Cas nuclease
Which of the following is NOT a physiological change related to photoperiodism?
A. some flowering B. root branching C. breaking bud dormancy D. seed germination E. onset of senescence
Explain why the autonomic nervous system could also be called the involuntary nervous system. What will be an ideal response?