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Travka [436]
3 years ago
6

Which of these are the two major sources of nitrate pollution in rivers?

Biology
1 answer:
prohojiy [21]3 years ago
7 0

Answer:

<em>The correct option is c) animal wastes and fertilizers</em>

Explanation:

Fertilizers can be described as chemicals which are used by farmers to enhance the production of their crops. Fertilizers contain toxic nitrogenous compounds which when dissolved in river become toxic for the aquatic life and pollute the river. The fertilizers are usually washed of into the rivers during flood or nay other circumstances.

Animal waste also contains toxic nitrogenous compounds which when washed off into the rivers pollute the rivers and seas.

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An mRNA containing information from more than one gene.
Anvisha [2.4K]

Answer:

Polycistronic mRNAs

Explanation:

Normally In Eukaryotic cells the messenger RNAs (mRNA) only contain the information to produce a protein, these mRNAs are known as monocistronic.

In Prokaryotes, the transcription system is usually polycistronic, this means that a mRNA have the information to encode two or more genes.

As an interesting example of the co-evolution of Eukaryotes, the mitochondrial genome has polycistronic genes.

8 0
3 years ago
The body mass index (bmi) of an adopted child will be ________ related to the bmi of the adoptive parents and ________ related t
xxTIMURxx [149]

The body mass index BMI of an adopted child will be not at all related to the BMI of the adoptive parents and strongly related to the BMI of the biological parents. The father and mother whose DNA a child inherits are commonly referred to as the child's biological parents.

Although they are not need to be blood relations, as in the case of an adopted child, legal parents have a legal family connection to the child. There are 8 different words that can be used in place of the word biological-parent on this page, including birth-father, biological-father, birth-mother, birth-parent, birth parent, father, mother, and natural parent.

To learn more about adoptive child, click here.

brainly.com/question/8872153

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5 0
1 year ago
Explain the law's of segregation and independent assortment.
VikaD [51]

I hope this helps.

Explanation: The law of segregation states that the two alleles of a single trait will separate randomly, meaning that there is a 50% either allele will end up in either gamete. This has to do with 1 gene. The law of independent assortment states that the allele of one gene separates independently of an allele of another gene.

7 0
3 years ago
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Add the corresponding RNA base pairs to make a mRNA strand given the following DNA segment. (1)
dybincka [34]
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6 0
3 years ago
????????? ????????????? URGENT ANSWER!
V125BC [204]

A little more context would be helpful, but in general Gram Staining helps us to decipher between two major groups of bacteria (Gram positive and Gram Negative). This is helpful because different antibiotics must be used to treat infections from the different types of bacteria, so it will help them to properly medicate Anna.

5 0
3 years ago
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