With respect to the cerebrum, gray matter is
a. located in the outer region and the central region surrounding the ventricles.
b. located in the inner region.
c. composed of nerve fibers.
d. responsible for transmission of information between neurons.
e. composed of only glial cells.
A
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The intercellular concentration of three electrolytes is compared with the concentration of these electrolytes in fluid eliminated from the shark rectal gland as indicated in the table above
Based on this data, which of the following is a likely function of the rectal gland? A) The rectal gland eliminates metabolic waste. B) The rectal gland is able to concentrate Na+, K+, and Cl-. C) The rectal gland stores only anions. D) The rectal gland is the only site of osmoregulation in the shark.
________ efficiency is the ratio of production to assimilation, which measures how efficiently the consumer incorporates assimilated energy into secondary production
Fill in the blank(s) with correct word
What is the principal energy storage molecules of plants and animals?
A. sugars. B. proteins. C. lipids. D. vitamins. E. carbohydrates.
The upper atmospheric region rich in ozone (O3) that screens out incoming ultraviolet (UV) radiation is called
A. proterozoic region. B. stratosphere. C. ozone layer. D. troposphere. E. radiosphere.