The tiny flap of tissue that keeps food from entering the trachea is called the
A) upper esophageal sphincter. B) pyloric valve.
C) esophagus. D) epiglottis.
D
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During the first year of life, the infant increases in length by ________% over what it was at birth.
A. 20 B. 100 C. 50 D. 33
Which statement about international trade is incorrect?
A. International trade can help countries provide for their population if they cannot grow enough food in country. B. International trade causes countries to become more interdependent. C. International trade is mostly a benefit to the developed world. D. An increase in food imports helped decrease the number of hungry people in newly industrialized countries in Asia.
Air and steam are physical agents that help dough to rise.
Answer the following statement true (T) or false (F)
Which of the following is NOT a goal of sustainable agriculture?
A) improved global transportation networks to ship foods B) increased crop yields C) food security D) minimizing adverse environmental impacts