An opening at one end of the gastrointestinal tract that functions in mechanical digestion and the breakdown of carbohydrates by secreting amylase.
A) Large intestine
B) Stomach
C) Esophageal cancer
D) Appendix
E) Mouth
F) Salivary glands
G) Rectum
H) Cirrhosis
I) Gallbladder
J) Small intestine
Answer : E) Mouth
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Contrary to popular belief, stress is not usually the primary cause of ulcers, and many patients with ulcers do not over-produce acid. What Nobel prize-winning discovery demonstrated a previously unknown cause of ulcers?
A. the existence of a bacterial infection in the stomachs of most patients with ulcers B. genetically predetermined weakness in the walls of the intestinal tract C. the eroding effect of certain spicy foods on the lining of the esophagus D. greater acid concentrations in the stomach, lower esophagus, and duodenum
A wetland with trees is called a
A) marsh. B) swamp. C) fen. D) bog.
Consider the Alexander paper (1961) on the aggressive nature of male crickets. Which one of the following is NOT a behavior typically seen during a fight between the dominant and subordinate crickets?
A. Using front legs to damage head and antennae B. Lifting the tegmina and stridulate C. Shaking the entire body D. Dashing or running forward toward the aggressor E. Rearing up on back legs to seem larger in size
Micronutrients function in plants mainly as
A) joining elements in organic molecule carbon skeletons. B) regulators of membrane transport. C) cofactors in chemical reactions. D) food reserves for pollen grains.