The digestive tract is essentially one long tube. The order of the structures, beginning with the mouth, is
A) pharynx, esophagus, stomach, small intestine, large intestine.
B) esophagus, pharynx, stomach, small intestine, large intestine.
C) pharynx, esophagus, stomach, large intestine, small intestine.
D) esophagus, stomach, pharynx, small intestine, large intestine.
E) pharynx, stomach, esophagus, small intestine, large intestine.
A
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____ is a large, double-stranded, helical molecule that contains instructions for assembling a living
organism from simpler molecules.
a. RNA b. DNA c. ATP d. NADPH e. Protein
What determines the specific wavelength of light absorbed by a cone cell?
A. The type of retinal molecule present B. The location of the cone cell on the retina C. The type of opsin present in the membrane D. The type of retinal molecule and opsin present
Identify three reproductive isolating mechanisms and briefly outline how each may contribute to the
formation of new species. What will be an ideal response?
Which of the following factors is LEAST likely to attract pollinators to a flower?
A. the amount of nectar B. color of the flower in visible light C. taste of the ovules D. odor E. color of the flower in UV light