PLPA 2003 QUESTIONS WITH VERIFIED ACCURATE
ANSWERS
Which of the following statements is LEAST correct?
Select one:
a. Microscopy also allowed great discoveries in the biology of non-microscopic
organisms.
b. Discovery of microorganisms could not occur until humans invented microscopes with
two lenses.
c. Leeuwenhoek did not invent the microscope.
d. Human reproduction was poorly understood until the advent of microscopy. -
Answers - b. Discovery of microorganisms could not occur until humans invented
microscopes with two lenses.
Antonie Van Leeuwenhoek, father of microbiology, first observed microorganisms with a
single lens
Which of the following statements about the demographics of human groups before the
Neolithic Revolution is most likely to be false?
Select one:
a. Disease pressure was probably lower than later groups because the group size was
lower
b. There was not a great deal of role differentiation in the groups
c. Disease was likely lower than later groups because they moved around more
d. Disease pressure was likely lower than later groups because of decreased contact
between groups
e. Disease pressure was likely higher than later farming groups because they
accumulated more animal based waste - Answers - e. Disease pressure was likely
higher than later farming groups because they accumulated more animal based waste
Hunter-Gatherers moved around a lot more frequently and did not accumulate a lot of
animal waste that would cause disease
Why was the United States able to eradicate Malaria?
Select one:
a. We have a high proportion of genetically resistant population
b. It's too cold in the US to support the pathogen
c. None of the above/below are correct
d. The mosquito vector was permanently eradicated from the US
e. The pathogen that causes human malaria has no significant animal reservoirs -
Answers - e. The pathogen that causes human malaria has no significant animal
reservoirs
ANSWERS
Which of the following statements is LEAST correct?
Select one:
a. Microscopy also allowed great discoveries in the biology of non-microscopic
organisms.
b. Discovery of microorganisms could not occur until humans invented microscopes with
two lenses.
c. Leeuwenhoek did not invent the microscope.
d. Human reproduction was poorly understood until the advent of microscopy. -
Answers - b. Discovery of microorganisms could not occur until humans invented
microscopes with two lenses.
Antonie Van Leeuwenhoek, father of microbiology, first observed microorganisms with a
single lens
Which of the following statements about the demographics of human groups before the
Neolithic Revolution is most likely to be false?
Select one:
a. Disease pressure was probably lower than later groups because the group size was
lower
b. There was not a great deal of role differentiation in the groups
c. Disease was likely lower than later groups because they moved around more
d. Disease pressure was likely lower than later groups because of decreased contact
between groups
e. Disease pressure was likely higher than later farming groups because they
accumulated more animal based waste - Answers - e. Disease pressure was likely
higher than later farming groups because they accumulated more animal based waste
Hunter-Gatherers moved around a lot more frequently and did not accumulate a lot of
animal waste that would cause disease
Why was the United States able to eradicate Malaria?
Select one:
a. We have a high proportion of genetically resistant population
b. It's too cold in the US to support the pathogen
c. None of the above/below are correct
d. The mosquito vector was permanently eradicated from the US
e. The pathogen that causes human malaria has no significant animal reservoirs -
Answers - e. The pathogen that causes human malaria has no significant animal
reservoirs
