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weeeeeb [17]
3 years ago
5

1. Suppose a town wants to buy a polluted marsh on an abandoned factory's land, clean up the marsh, and use the area as a nature

center for the town. What are two costs and two benefits of the town's proposal?
Biology
1 answer:
Lesechka [4]3 years ago
6 0

Answer:

The correct answer is given below:

Explanation:

If a town wants to buy a polluted marsh region on a factor's land that is abandoned and clean up the marsh and use the particular area as a nature center for the town there would be some costs and benefits of this which are:

Costs of the proposal:

Such a plan requires economic support as it costs a huge amount of money, how the town will get the money for this?

Some taxpayers may raise the question of how the town can use their money for a plan that requires money for cleaning.

Benefits:

Nature centers can help for education purposes for pollution its effect and how to control it. It also leads to tourism and jobs.

Nature and animals will be benefited too

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Answer:

D) the arrangement of the nucleotides within genes

Explanation:

De-oxy ribo nucleic acid that is basically a polymer of nucleotides. Nucleotides are composed of three basic units: a de-oxyribose sugar unit, a phosphate group and nitrogenous bases that can be Adenine, Gunanine, Thymine and Cytosine.Adenine always pairs with Thymine and Guanine always pairs with Cytosine.

This is a universal composition of DNA in each and every living organism. The genes are a segment of DNA that contain specific sequence of nucleotides and encode for a specific trait of organism such as height, weight, eye color etc. The sequence of nucleotides expresses the trait in the form of protein product during the process of Translation. The products of translation are amino acids and every amino acids encode for a specific protein  in almost  all living organisms.

So, what differs in the specie is the sequence of nucleotides in genes. Infact this is the nucleotide sequence which brings evolution in organism and organisms evolve to form new specie with the passage of time. One major cause of change in nucleotide sequence is mutations due to which the organisms change with time.

Suppose the sequence of nucleotide of specific gene in organism A is

AAGGGGAAATTT

However in other specie organism B of same specie is:

TAGGGGAAATTT

This means only mutation of one base changed the gene in organism B and also its product called protein.

Hope it help!

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