An infectious disease with a prevalence greater than expected for a population is said to be ____
a. sporadic
b. endemic
c. an epidemic
d. a pandemic
c. an epidemic
Biology & Microbiology
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In the first phase of photosynthesis, __________ + light = chemical energy
a. carbon dioxide b. nitrogen c. oxygen d. wat
Biology & Microbiology
Unlike eudicot roots, the center of most monocot roots is occupied by the:a
cortex. b. pith. c. phloem. d. vascular cambium. e. xylem.
Biology & Microbiology
An individual who has been bitten by a poisonous snake that has a fast-acting toxin would likely benefit from _____
A) vaccination with a weakened form of the toxin B) injection of antibodies to the toxin C) injection of interleukin-1 D) injection of interferon
Biology & Microbiology
In sea urchin development, the archenteron becomes the:
A) endoderm. B) lungs. C) ectoderm. D) digestive tube.
Biology & Microbiology