When transporting the microscope one hand should support the ________ and the other should support the ________
A) condenser; stage
B) head; base
C) arm; base
D) stage; arm
Answer: C
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Answer the following statements true (T) or false (F)
1. Microtubules are hollow tubes made of subunits of the protein tubulin. 2. Nitric oxide may act as a biological messenger.
The best models to use in studying surface anatomy include
A) babies and children. B) elderly individuals. C) individuals with well-developed muscles and little body fat. D) extremely slender individuals who have little body fat. E) plastic models from the laboratory.
Which lymphoid organ serves in immune surveillance and in filtering lymph?
A. tonsils B. the spleen C. the thymus D. lymph nodes
Precapillary sphincters will
A. control blood flow into the true capillaries. B. cause blood to flow directly from the metarteriole into the postcapillary venule. C. open when the tissue needs nutrients. D. close when the tissue's needs have been met. E. All of the answers are correct.