Which part of the pharynx is not matched to its correct location?
A. laryngopharynx: where the pharynx opens into the larynx
B. nasopharynx: where the nasal cavities open at the top
C. oropharynx: where the sinuses open
Answer: C
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How does Clostridium perfringens cause food poisoning? How is this process related to the metabolism and special structures of C. perfringens?
What will be an ideal response?
Define and give examples of several homologous structures
What will be an ideal response?
Follicle-stimulatin hormone
a) is secreted by females but not by males b) stimulates the seminiferous tubules to produce sperm c) secretion is controlled by gonadotropin-releaseing hormone (GnRH) D) b and c
The donor cell makes ________ whose function is to bring F- cells close enough to transfer a ________ to the recipient.
A. an F factor; replicated F factor B. a sex pilus; single strand of DNA C. a sex pilus; bacterial chromosome D. a sex pilus; double strand of DNA E. an F factor; fertility plasmid