There are about 10 times as many species of anurans as there are species of salamanders. Can you think of a reason why anurans might be a more successful form of amphibian than salamanders are?
What will be an ideal response?
This question is clearly speculative. Here are two plausible speculations: (1) An anuran is substantially more mobile than a salamander of the same body size because the anuran has much longer legs. (2) Arboreal salamanders are relatively small because they depend on adhesive forces for climbing, whereas arboreal anurans can be large because they have grasping toes.
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The ________ is the cell's control center.
A. Golgi apparatus B. lysosome C. cytosol D. nucleus E. smooth ER
The tissue in which all cells contact the basement membrane, even though some appear (at first glance) to be stacked on top of others, is called ___________ columnar epithelium
Fill in the blank with correct word.
What is the correct order for the layers of the GI tract wall, from innermost (next to lumen) to outermost?
A. Mucosa - submucosa - adventitia/serosa - muscularis B. Muscularis - mucosa - adventitia/serosa - submucosa C. Adventitia/serosa - mucosa - submucosa - muscularis D. Mucosa - submucosa - muscularis - adventitia/serosa E. Adventitia/serosa - muscularis - mucosa - submucosa
When dribbling a basketball, the radius is crossed over the ulna in the forearm. In other words, the forearm is
A. pronated. B. supinated.