Epinephrine blocks the contraction of muscles in the airways. Which of the other activities of epinephrine is most likely to be regulated by the same type of pathway?
A. Increased sweating.
B. Stimulation of heart muscle cell contraction.
C. Promotes the breakdown of glycogen in skeletal muscle cells
D. Inhibition of saliva production in salivary glands
E. Contraction of smooth muscle cells in blood vessels.
D. Inhibition of saliva production in salivary glands
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Which of the following serves as a connection between the nervous and endocrine systems?
A. hypothalamus B. pineal gland C. thyroid gland D. pancreas E. adrenal gland
The image of an individual's complement of chromosomes arranged by size, length, shape, and centromere location is
called a(n) _____.
a. autotype b. genotype c. phenotype
d. karyotype e. double helix
Ordinary cell division produces two daughter cells that are genetically identical. This type of cell division is important for all of the following functions EXCEPT ________
A) growth of a multicellular organism B) cell replacement C) production of sperm and eggs D) asexual reproduction
Much of what is known about the history of the origin of life came from:
a. written history. b. word of mouth. c. educated guesses. d. the study of fossils. e. None of the above; nothing is known about the history of the origin of life.