A nerve whose fibers conduct impulses only away
from the central nervous system is
a. exclusively motor.
b. exclusively sensory.
c. motor or sensory depending on body location.
d. a spinal nerve.
e. a cranial nerve.
Answer: a
You might also like to view...
Discuss the dangers of placing too much emphasis on the genetic basis of personality and behavior
What will be an ideal response?
Which time period would hold the record of the oldest fossils of multicellular animals, found in mountainous areas of
South Australia, and parts of Canada and China? a. Edicarian b. Devonian c. Cambrian d. Cretaceous e. Ordovician
The antibiotic streptomycin inhibits protein synthesis in bacteria. If this antibiotic is added to a culture of animal cells, protein synthesis in the cytosol continues normally
However, over time, the population of mitochondria in the cell becomes depleted. Specifically, it is observed that the protein-synthesis machinery inside the mitochondria is inhibited. A. Explain this observation based on what you know about the origins of the modern eukaryote. B. What do you expect to observe if, in a new experiment, animal cells are treated with diphtheria toxin, a compound that is known to block cytosolic protein synthesis but does not have any impact on bacterial growth?
Which of the following scenarios is explained by adaptive radiation?
A. The toxicity level of the bark of a species of plant increases due to constantly being attacked by aphids. B. The color pattern of the moths living in the woods of England become darker as the levels of pollution increase during the Industrial Revolution. C. The average running speed of a cheetah increases each generation due to the gazelles getting faster. D. All of these are examples of adaptive radiation.