The hormone gastrin is released by the stomach. Its function is to stimulate the release of gastric juices. What is the stimulus to release this hormone?
A) the aroma of food
B) the process of chewing food
C) the distension of the stomach and presence of protein
D) the sight of food
C
Biology & Microbiology
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An example of an animal with a long digestive tract and molars with a large, ridged surface is
a. cat. b. deer. c. dog. d. shark. e. tiger.
Biology & Microbiology
A rise in oxygen in Earth's air and seas put organisms that engaged in _____ at a selective advantage
a. aerobic respiration b. fermentation c. photosynthesis d. sexual reproduction
Biology & Microbiology
Many amphibians now face extinction, and one cause is believed to be a(n) __________ fungus. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
Which event would most likely result in the creation of large numbers of fossils?
A) a drought B) an earthquake C) a fire D) a volcano
Biology & Microbiology