The disease responsible for the death of approximately ¼ the population of Europe from 1346 to 1350 was
A. typhus.
B. pneumonia.
C. influenza.
D. plague.
D.
Biology & Microbiology
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The two most abundant ions in plasma are ____
a. HCO3? and Ca2+ b. HCO3? and Cl? c. Na+ and Ca2+ d. Na+ and Cl?
e. Na+ and K+
Biology & Microbiology
Shoreline communities exhibit strong zonation
Indicate whether the statement is true or false
Biology & Microbiology
Which of the following does not occur when you are very, very cold?
A. You get goose bumps. B. The arrector pili muscles contract. C. Shivering occurs. D. Smooth muscle contracts inside the blood vessels supplying the skin. E. More blood flows to the surface of the body.
Biology & Microbiology
What is an array of organisms and their physical environment, all interacting through a one-way flow of energy and a cycling of nutrients?
A. Ecosystem B. Food web C. Biomass pyramid D. Biogeochemical cycle E. Food chain
Biology & Microbiology