Which of the following statements correctly matches a body system with its function?
a) the digestive system facilitates absorption of substances into the bloodstream
b) the respiratory system transports oxygenated blood throughout the lungs and body
c) The excitatory system prevents harmful substances from entering the body
d) The endocrine system transports hormones from place to place within the body
Ans: a) the digestive system facilitates absorption of substances into the bloodstream
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Synthesis of a protein destined to function in the nucleus occurs:
A. in the cytosol. B. on the rough endoplasmic reticulum. C. on the outer leaf of the nuclear envelope. D. in the Golgi apparatus.
The ____ responds to red light
a. outer segment of rods b. outer segment of red cones c. inner segment of rods d. inner segment of red cones e. synaptic terminals of both rodsand cones
What is the fundamental purpose of staining in light microscopy?
a. To kill the specimen b. To make the specimen appear larger in the microscope c. To see the specimen without the aid of a microscope d. To increase the contrast and visibility of the specimen
If a plant species exhibits maternal inheritance for leaf pigmentation, what is the phenotype of the parents of a variegated (green and white leaves) plant?
A. The maternal plant must be white and the paternal plant must be green. B. The maternal plant must be green and the paternal plant must be white. C. Both the maternal and paternal plant must be variegated. D. The maternal plant must be variegated and the paternal plant can be any color. E. The maternal plant must be variegated and the paternal plant must be white.