Biology, 24.06.2019 22:30 mathhelppls14
In the 1800s, many people living in the cities in the united states died of infectious diseases such as cholera, which is caused by a bacterium that pollutes water. cholera is no longer a major problem in the united states. what is the most likely reason for the elimination of cholera as a major disease? a. advances in medicine have led to cures for cholera. b. people have learned the importance of washing their hands. c. sewage treatment plants have eliminated such pathogens from drinking water. d. regulations have prevented factories from dumping pollution into lakes and rivers.
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Biology, 21.06.2019 15:30
Compare and contrast the adaptations of free-living flatworms and parasitic flatworms
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Biology, 22.06.2019 03:00
What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.
Answers: 2
Biology, 22.06.2019 06:10
Long-period comets come from the oort cloud particles in earthβs atmosphere material from the asteroid belt the kuiper belt
Answers: 2
Biology, 22.06.2019 06:30
Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative
Answers: 1
In the 1800s, many people living in the cities in the united states died of infectious diseases such...
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