Diseases And Ecology Question Preview (ID: 31556)
Diseases And Ecology.
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Why would you get a vaccine?
a) to stop yourself from getting sick
b) to help yourself get better once your sick
c) to make yourself get sicker
d) all the above
Which of the following correctly describes a carrier of a disease?
a) someone who does not have a disease but can pass it to someone
b) someone who has a disease but cannot pass it to another person
c) someone who has a disease and shows no symptoms but can pass it to another person
d) someone who has a disease, shows symptoms of it, and can pass it to someone
How are bacteria different from other eukaryotes?
a) they have a nucleus
b) they don't have a nucleus
c) they have two nuclei
d) all the above
Which of the following is true about sexual reproduction in bacteria?
a) involves 1 parent, offspring is identical
b) involves 1 parent, offspring is different from parent
c) involves 2 parents, offspring is identical to parents
d) involves 2 parents, offspring is a combination of both parents
If I have strep throat, a bacterial disease, which of the following would be the best treatment?
a) drinks lots of fluids
b) take antibiotics
c) get plenty of rest
d) both a and c
Why do doctors suggest that people get a flu vaccine each year?
a) viruses replicate more rapidly over time
b) viruses can mutate from year to year
c) vaccines are absorbed by the body after a year
d) vaccines get stronger over ime
How can the rate of an infectious disease bo drastically reduced?
a) by taking medication daily
b) by preventing transmission between people
c) by wearing clean clothing daily
d) by performing dental hygiene three times each day
Which is the best way to help prevent the flu from becoming a pandemic?
a) getting a vaccination
b) taking antibiotics
c) eating fruits and vegs
d) washing hands often
Ten people get sick at a school dance. What is the scenario that could best explain how the people got sick?
a) contact with environmental source
b) contact with an infected animal
c) contact with an infected object
d) contact with an infected person
How can the rate of an infectious disease be drastically reduced?
a) by taking medication daily
b) by preventing transmission between people
c) by wearing clean clothing daily
d) by performing dental hygiene three times each day
Which best determines the number of wolves that can live in an area?
a) the amount of snow in the area each year
b) the number of birds that live in the area
c) the number of trees in the area
d) the amount of food available in the area
What happens to a population and to competition when there is a reduction of living space?
a) the population expands and competition intensifies
b) competition strengthens while the population contracts
c) the population increases as competition decreases
d) competition weakens and the population decreases
Where do plants get most of the energy they need to live and grow?
a) water
b) soil
c) air
d) sunlight
If wolves prey on deer for food, what most likely will happen to the deer population if wolves are removed from the area?
a) the population of deer will increase
b) the population of deer will decrease
c) the population of deer will remain the same
d) the population of deer will become extinct
Which best explains the importance of nitrogen in the cycling of energy and matter?
a) nitrogen increases protein production in plants
b) nitrogen decreases protein production in plants
c) nitrogen decreases the effectiveness of photosynthesis
d) nitrogen increases the effectiveness of photosynthesis
In the winter, the fur of the arctic fox is white. In summer, the fur darkens to reddish brown. What most likely causes the fur to change color?
a) the amount of sunlight present
b) the fox's habitat
c) the fox's genes
d) the fox's age
Which best allows a species to survive environmental changes?
a) similar physical features
b) low mutation rate
c) small population
d) genetic diversity
Kudzu vines grow by climbing and wrapping themselves around trees. Trees covered in kudzu can die because they cannot get enough sunlight. What type of relationship is this?
a) competition
b) mutualism
c) parasitism
d) predator-prey
What process is most responsible for the extinction of most species?
a) gene mutation
b) environmental changes
c) selective breeding
d) decrease in reproduction
Where is the largest amount of energy found in a food web
a) decomposers
b) producers
c) consumers
d) trodumers
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