Answer the following questions true (T) or false (F)
1. Serous fluid lubricates around organs and reduces friction as the organ moves against adjacent structures.
2. Negative feedback loops produce responses in the opposite direction of the initial stimulus while positive feedback loops produce responses in the same direction of the initial stimulus.
3. According to the principle of complementarity of structure and function, structure and function are related only at the cellular level.
1. TRUE
2. TRUE
3. FALSE
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The length of the trachea is approximately ____________________.
Fill in the blank(s) with the appropriate word(s).
Fruits, maple syrup, and sugar are all sources of
A. cellulose. B. sucrose. C. lactose. D. nitrogen.
Which of the following is required for erythropoiesis?
A. Vitamin K B. Vitamin B12 C. Folate D. Iron E. All of the choices are correct.
A butcher who cuts the distal portion of his fingers may have cut the __________ tendon.
A. flexor pollicis longus B. flexor carpi ulnaris C. palmaris longus D. adductor pollicis E. flexor digitorum profundus