The fluid that covers the brain and spinal cord is ____.
A. part of the meninges
B. part of a rapid type of nerve conduction
C. involved in reflex actions
D. involved in the "jumping" of impulses
E. called cerebrospinal fluid
Answer: E
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a. below 60 mm Hg b. 80 mm Hg c. 100 mm Hg d. 120 mm Hg e. above 120 mm Hg
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A) one codon B) one nucleotide C) two nucleotides D) two codons E) three codons
Whose proposal of the endosymbiotic theory of mitochondrial and chloroplast origin was ultimately accepted by the grater scientific community?
A. Rudolf Virchow B. Ignaz Semmelweis C. Lynn Margulis D. Theodor Schwann
The three particle that make up atoms are
a. protons , neutrons, isotops b. neutrons , protons, electrons c. positive , negatives, neutrons