Annelids are characterized by (select all that apply):
A. cylindrical, segmented bodies.
B. extensive nervous systems.
C. radula for feeding.
D. hydrostatic skeletons.
E. ecdysis.
A,B,D
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The increased osmolarity of the filtrate after Bowman's capsule is caused by:
A. diffusion of NaCl out of the proximal tubule. B. diffusion of HCO3– out of the proximal tubule. C. active transport of NaCl out of the proximal tubule. D. active transport of HCO3– out of the proximal tubule.
Which of the following is NOT a tetrapod
A. a frog B. a snake C. a bird D. a human E. a lungfish
If the circumstances that are creating your stress can be changed, _____ forms of coping are likely to be MOST effective.
A. problem-focused B. emotion-focused C. Lazarus's D. Folkman's
__________ immunity specifically targets billions of different antigens.
Fill in the blank(s) with the appropriate word(s).