Which of the following groups of vertebrates lacks bone?
A. ray-finned fishes
B. sharks
C. amphibians
D. reptiles
E. birds
B. sharks
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Salivary amylase:
A. starts the chemical digestion of carbohydrates in the mouth. B. starts the chemical digestion of carbohydrates in the stomach. C. starts the chemical digestion of proteins in the stomach. D. starts the chemical digestion of fats in the mouth. E. starts the chemical digestion of proteins in the mouth.
Each of the following is an example of facilitated diffusion except
A) glucose transport by GLUT1. B) chloride-bicarbonate exchange. C) aquaporin transport. D) ion channel transport. E) oxygen transport.
The Mesozoic era is often called the age of:
a. amphibians. b. fish. c. mammals. d. conifers. e. reptiles
A loaf of bread was left uncovered for two weeks on a scale measuring its mass. Mold grew on it, decomposing the bread. Assuming that the bread did not dry out, which of the following is a reasonable prediction of the weight of the bread and mold together?
What will be an ideal response?