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Cloud [144]
3 years ago
12

Which statement best explains how sewage systems help fight the spread of disease?A.They carry antibiotics that kill pathogens i

n the air.B.They add chlorine to drinking water before it is transported to homes.C.They kill the animals that spread pathogenic bacteria.D.They carry human waste to treatment facilities away from cities.
Biology
1 answer:
SpyIntel [72]3 years ago
3 0

Answer:

D.They carry human waste to treatment facilities away from cities.

Explanation:

Sewage system is a collection of systems that carries sewage (human waste) from the point it was produced to a place where it'll be treated or recycled.

Since sewage is moved via the use of sewage system, it helps to fight the spread of disease by carrying human waste (sewage) to treatment facilities away from cities.

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Now that you have come up with an equation that describes the relationship between amounts of different nucleotide bases in DNA,
Elza [17]

Answer:

The correct answer will be- 21, 29, 29

Explanation:

In a DNA sequence, the nucleotide base pairs on one strand of DNA are  complementary to the base pair on other strand of DNA.

According to the Chargaff rule, Adenine binds Thymine and Cytosine binds Guanosine which shows that the amount of A will equal T and the amount of G will equal C.

Therefore, when the amount of C is 21%, then the amount of G will be 21%.

To find amount of AT= 100-GC

                              AT= 100-42

                                AT= 58%

So, AT/2= 29% each

Thus, A=T= 29%

          G=C=21%

5 0
3 years ago
How can mutations be helpful? Give 2 examples
RSB [31]
Having two copies of the mutated genes cause sickle cell anemia, but having just one copy does not, and can actually protect against malaria - an example of how mutations are sometimes beneficial. 

The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.

Hope this helped :)
6 0
3 years ago
When providing proof of life what information should you include?
Alchen [17]

One of the information to provide is stating the condition that you are in specifically saying whether you’ve sustained some injuries or are you suffering from certain illness. Also you need to provide your name and the name of other people you are with. Lastly you should be able to give proof of the latest date that you could provide which could be done through getting the latest issue of newspaper. 

4 0
3 years ago
????????????????????????
ozzi
Cell membrane would be corr3eect

8 0
3 years ago
Read 2 more answers
There are three ways sexual reproduction increases genetic diversity in a species. Choose two and explain each
Yuki888 [10]

So in order to form a new organism, two gametes -- the sex cells, sperm and egg -- must fuse, further mixing the genes to produce more genetic diversity. Asexual reproduction is one organism dividing into two organisms without shuffling its genes, so the offspring has the same version of genes as did the parent.

3 0
3 years ago
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