Which of the following characteristics would be true of an epithelium specialized for exchange by diffusion (e.g., a respiratory epithelium)?
A. Thick with a relatively small surface area
B. Thin with a relatively small surface area
C. Thin with a relatively large surface area
D. Thick with a relatively large surface area
E. Thin with a small surface area/volume ratio
Answer: C
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a. iodine c. cortisol b. antidiuretic hormone d. secretin
All of the following are features of the scientific method EXCEPT
A) hypothesis formulation. B) observation and experimentation. C) deductive reasoning. D) supernatural causes. E) repeatable by other scientists.
Bacterial predators such as Bdellovibrio are members of the betaproteobacteria
Indicate whether the statement is true or false
Most plants absorb water and minerals from the ________ and transport them through the ________.
A. atmosphere; xylem B. soil; phloem C. atmosphere; phloem D. soil; xylem