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saw5 [17]
3 years ago
11

How does fecal coliform get into the water

Biology
2 answers:
vovangra [49]3 years ago
5 0

Answer:

The presence of fecal coliform in aquatic environments may indicate that the water has been contaminated with the fecal material of humans or other animals. Fecal coliform bacteria can enter rivers through direct discharge of waste from mammals and birds, from agricultural and storm runoff, and from human sewage.

Explanation:

blsea [12.9K]3 years ago
4 0

Answer:

The presence of fecal coliform in aquatic environments may indicate that the water has been contaminated with the fecal material of humans or other animals. Fecal coliform bacteria can enter rivers through direct discharge of waste from mammals and birds, from agricultural and storm runoff, and from human sewage.

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Why are some diseases more common in certain groups of people, such as caucasians or African Americans
Anna71 [15]

Answer:

Some diseases are more common in certain groups of people, such as Caucasians or African Americans because individuals in such ethnic groups often share certain alleles (versions of their genes), that have been passed down to them from common ancestors and a particular genetic disorder may be more frequently seen in such groups if one of these shared genes contains a disease-causing mutation.

Explanation:

Some genetic diseases are frequently seen in certain ethnic groups like Caucasians or African Americans. Individuals in such groups often share certain alleles (versions of their genes), that have been passed down to them from common ancestors and one of these shared genes may contains a disease-causing mutation.

Examples of certain genetic disorders that are more common in particular ethnic groups include the Tay-Sachs disease, which is more common in people of eastern and central Europe (Ashkenazi), Jewish or French Canadian ancestry and the sickle cell disease, which occur among people of African, African American, or Mediterranean heritage.

Some genetic disorders are more common in people whose ancestry can be traced to a particular geographic area. The factors that can lead to development of populations with very different genetic allele frequencies include their geographic origin, selection, patterns of migration, historic events, etc. Certain natural barriers like oceans and other water bodies, high mountains, large deserts, or major cultural factors had prevented communication and interaction between people. So mating was restricted within the group, and this produces genetic marker differences and differences in the presence of specific disease-related alleles.

6 0
2 years ago
Which star is dimmer deneb or mira<br>​
xz_007 [3.2K]

Answer:

Mira

Explanation:

5 0
3 years ago
In the darkness, a pinpoint of light becomes visible. Someone has turned on a flashlight. The pin­point grows to the size of the
Firlakuza [10]

Answer:

to explain how light travels

Explanation:

8 0
3 years ago
How could a populations gene pool change overnight time?
NeTakaya
A mutation could do that.
6 0
3 years ago
Steps of the scientific method
KonstantinChe [14]

There are 5 steps of the scientific method

1. Make a question

2. Do some research for that question.

3. Hypothesis ( guess what might happen during the experiment)

4. Test and Collect Data

5. Conclusion ( what you learned from the experiment)

5 0
3 years ago
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