In the 1880s louis pasteur developed a method of weakening viruses. the weakened viruses could be injected into healthy individuals. how is this method effective in fighting viral diseases? a. the immune system develops antibodies in response to the weakened viruses b. the weakened viruses attach to unaffected viruses in the host and interrupt the viral reproductive cycle c. the rate of genetic mutation in the host is decreased due to the introduction of weakened viruses d. weakened viruses are unable to enter the host organism
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Biology, 21.06.2019 22:00
Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.
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Biology, 22.06.2019 01:20
Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.
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Biology, 22.06.2019 05:00
What organ systems are working to you cool down after a workout?
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Biology, 22.06.2019 10:10
Fruit bats in central america eat bananas and other fruits. banana plants rely on bats for pollination. what would be the most likely consequence on the banana crop if fruit bats were eliminated from the area? the banana crop would increase because bats would stop eating the crops. the banana crop would decrease because bats would no longer pollinate the crops. the banana crop would remain constant because bees would replace the bats. the banana crop would remain constant because the plants would adapt using asexual reproduction.
Answers: 1
In the 1880s louis pasteur developed a method of weakening viruses. the weakened viruses could be in...
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