Skeletal muscles help maintain body temperature in that
A) excess myosin is quickly metabolized to yield heat.
B) they conserve actin and myosin in cold weather.
C) the more active they are, the more heat is released.
D) the more active they are, the more heat is used up.
C
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____________________ refers to the chemical attraction of leukocytes to the site of invasion
Fill in the blank(s) with correct word
All of the following are functions of mucus and mucous membranes except which one?
A. Trap microbes. B. Destroy pathogens. C. Initiate tissue repair. D. Inhibit pathogens from progressing.
Which of the following membranes lines body cavities that are open to the exterior?
A) pleura B) synovial C) cutaneous D) mucous E) serous
Some ganglion cells of the retina contain ________ that is sensitive to luminance and helps the hypothalamus regulate circadian rhythms.
A. melatonin B. melanopsin C. photopsin D. retinal