Cycles of fever which recur every 48 hours is characteristic of
A. malaria.
B. toxoplasmosis.
C. giardiasis.
D. leishmaniasis.
E. balantidiasis
Answer: A
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Someone who inconspicuously harbors a pathogen and spreads it to others is a ________.
A. reservoir B. carrier C. fomite D. source E. vector
Sister chromatids separate from each other during _____
A) meiosis I only B) meiosis II only C) mitosis and meiosis I D) mitosis and meiosis II
Imagine that there are twenty-five different species of protists living in a tide pool. Some of these species reproduce both sexually and asexually, and some of them can reproduce only asexually
The pool gradually becomes infested with disease-causing viruses and bacteria. Which species are more likely to thrive in the changing environment? A) the sexually reproducing species B) the asexually reproducing species C) Sexually and asexually reproducing species are equally likely to thrive.
As a 7-year-old child, you helped your father nail a birdhouse 7 feet high on a 10-foot-tall maple tree
If the tree grew an average of 12 inches per year, except during a dry year when it grew only 2 inches, how high in the tree is the birdhouse when you are 18 years old? A) 17 feet, 2 inches B) 7 feet C) 19 feet D) 10 feet E) 17 feet