All of the following pertain to poliomyelitis, except
A. it can be asymptomatic or mild with headache, sore throat, fever, and nausea.
B. it is transmitted primarily by fecal contaminated water.
C. there are effective vaccines to prevent polio.
D. if virus enters the central nervous system motor, neurons can be infected and destroyed.
E. summer outbreaks in the U.S. have been recently increasing.
Answer: E
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Algae in the genus Caulerpa typically grow to a length of over half a meter and have structures similar to stems, leaves, and roots. Reproduction occurs when adults produce sperm and eggs that fuse to form offspring. Algae in the genus Caulerpa typically grow to a length of over half a meter and have structures similar to stems, leaves, and roots. Reproduction occurs when adults produce sperm and
eggs that fuse to form offspring. Each adult Caulerpa consists of just a single cell, however. Which of the following statements is true? A) Caulerpa violate the pattern component of the cell theory that all organisms consist of cells. B) Caulerpa violate the process component of the cell theory that all cells come from preexisting cells. C) Caulerpa violate both the pattern and process components of the cell theory. D) The existence of Caulerpa is consistent with the cell theory.
Water obtained from seawater desalination is much cheaper than water pumped from the ground
Indicate whether the statement is true or false
Plasma contains all of the following components EXCEPT
A) hormones. B) albumin. C) water. D) lymph.
Flowers bear seeds that develop from ovules housed in protective chambers called
A) stamens. B) sepals. C) ovaries. D) pistils.