The sabin vaccine was a liquid that contained weakened polio viruses. those who have received this vaccine are protected against polio because?
a. the weakened viruses prevent further viral invasion.
b. thee weakened viruses induce an inflammatory response.
c. the weakened viruses promote production of antibodies.
d. the weakened viruses are too weak to cause illness.
Answers: 1
Biology, 22.06.2019 00:50, bvghchg8812
Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d. a round-trip ride to school and back
Answers: 2
Biology, 22.06.2019 10:30, keenansimpkinsoy0oqc
There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.
Answers: 1
Biology, 22.06.2019 13:30, laylay1734
How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.
Answers: 3
The sabin vaccine was a liquid that contained weakened polio viruses. those who have received this v...
English, 19.12.2020 04:40
Mathematics, 19.12.2020 04:40
Mathematics, 19.12.2020 04:40
Mathematics, 19.12.2020 04:40
English, 19.12.2020 04:40
Mathematics, 19.12.2020 04:40
Chemistry, 19.12.2020 04:40