At rest, muscle tissue prefers to use ________ molecules as sources of fuel.
A. simple carbohydrate
B. protein
C. fatty acid
D. pyruvate
E. insulin
Answer: C
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An industrious 10 -year-old swimmer has attached an extension to his snorkel tube, so that he can sit on the bottom of the ocean for a longer period of time, watching the fish of the coral reef. What problems would you expect him to have? Assuming he is successful in breathing this way for a little while, what are some of the differences he will experience compared to normal breathing?
What will be an ideal response?
The average driving force that gets blood into the tissues throughout the cardiac cycle is called the _________________ pressure (not "blood")
Fill in the blank(s) with correct word
What are the three embryonic divisions of the digestive system?
A. Stomach, liver, small intestine B. Foregut, midgut, hindgut C. Coelom, dorsal cavity, ventral cavity D. Stomach, small intestine, large intestine E. Ectoderm, endoderm, mesoderm
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.