The major divisions of the peripheral nervous system are the ____
a. somatic and autonomic systems
b. sympathetic and parasympathetic systems
c. peripheral and central systems
d. afferent and autonomic systems
e. cranial and skeletal nerves
ANSWER: a
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What percent of analytes in plant samples identified from mass spectrometry are classified as
“unknown”?
a. 6% d. 60% b. 16% e. 96% c. 46%
Trees are able to transport water from the roots to the top branches because
A. cohesion bonds water molecules to each other strongly. B. liquid water has a higher density than the air in the plant cells of the roots, trunk, and branches. C. water acts as a solvent of the tree cells as it moves upwards to the branches. D. adhesion bonds water molecules to the inside of the plant conducting tubes. E. leaves are hydrophilic.
Which of the following is not predicted by a Punnett square?
1.the expected genotypic ratio of the offspring 2.the expected phenotypic ratio of the offspring 3.the number of offspring that will result 4.none of these; all are predicted
Which cell type produces an enzyme that lengthens telomeres?
a. cancer cells b. red blood cells c. cells in gonads that produce sperm and oocytes d. both cancer cells and red blood cells e. cancer cells, red blood cells, and cells in gonads that produce sperm and oocytes