Which of the following results from the stimulation by nerve impulses generated in the respiratory center when they arrive at the muscles involved in inspiration?
A) contraction of the diaphragm
B) reduction in the efficiency of oxygen transport by the blood
C) increase in air pressure in the lungs
D) opening of the trachea
E) downward movement of the ribs
A
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The organelle that "packages" and "ships" proteins for transport within and out of the cell is the
a. ribosome. b. lysosome. c. nucleolus. d. Golgi body. e. peroxisome.
Leprosy destroys nerve tissue, so an afflicted person is likely to hurt his or her foot without even knowing it. Which types of neurons are likely to be affected?
A) neuroglial cells B) motor neurons C) sensory neurons D) interneurons
Bat-pollinated, night-blooming flowers would most likely display which two characteristics?
a. blue petals and sticky pollen grains b. yellow petals and the scent of rotting flesh c. orange petals and no scent d. white petals and a strongly sweet scent e. red petals and sticky pollen grains
Compare the composition, structure, and function of cilia and flagella
What will be an ideal response?