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netineya [11]
3 years ago
5

Why does the government not do more to regulate nonpoint source pollution

Biology
1 answer:
sashaice [31]3 years ago
7 0

Hello!

The answer you were looking for is....

(D) Nonpoint source pollution is difficult to regulate, because its source is difficult to track.

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3. Climate change has been a topic repeatedly mentioned in our study of Marine Science.
Ber [7]

Answer:

Climate change lead to the destruction of corals due a warming of the oceans, increase in ocean acidity as gases such as carbon dioxide are absorbed into the oceans, rise in sea level due to melting glaciers and increase in precipitation, changes in storm patterns, etc.

Symbiosis is a close relationship between two dissimilar organisms which usually results in benefits to one or both organisms.

<em>Note: The study material was not provided.</em>

Explanation:

Greenhouse gas emissions from human activities have led to an increase in global surface temperature. This has resulted in a warming of the oceans, increase in ocean acidity as gases such as carbon dioxide are absorbed into the oceans, rise in sea level due to melting glaciers and increase in precipitation, changes in storm patterns, etc.

The warming of the oceans poses a great threat to life and activities in the ocean. Coral reefs especially are affected by a warming of the ocean in the following ways:

  • mass coral bleaching- with increase in ocean temperature, corals remove the algae living in association with them that are responsible for their colour, thereby turning corals white. With prolonged bleaching periods, the corals eventually eventually die .
  • Sea level rise: with rise in sea level comes a likelihood of increase in flow of sediments into the sea. This sediments when deposited on corals found near land suffocates and kill the corals.
  • Changes in storm patterns: stronger and more frequent storms can lead to a destruction of coral reefs.
  • Increase in the acidity of oceans results in death of corals.

Corals and algae exist in a symbiotic (mutualistic) relationship in coral reefs. The coral provides the algae with a protected environment and compounds they need for photosynthesis. In return, the algae produce oxygen and help the coral to remove wastes.

Therefore, symbiosis is a close relationship between two dissimilar organisms which usually results in benefits to one or both organisms.

8 0
2 years ago
The fact that an organism's offspring are not identical is known as
joja [24]

Answer:

B. Inherited Variation

Explanation:

4 0
3 years ago
Read 2 more answers
The difference between PCR and real-time PCR is thatA. real-time PCR can measure the amount of DNA amplified as the reaction pro
Reika [66]

Answer:

The correct answer is <em>A. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.</em>

Explanation:

PCR (Polymerase Chain Reaction) is a molecular biology technique. Conventional PCR and real-time PCR are diferent types of PCR, and are both used to exponentially amplify DNA molecules. In both types, a polimerase enzyme is employed to sinthesize DNA copies. The main difference is that conventional PCR is qualitative whereas real-time PCR is quantitative. So, real-time PCR permits not only to detect and amplify DNA but also permits to perform a quantification of the target DNA. This is accomplished by measuring a fluorescence signal - which is directly the amount of DNA amplified- during the course of the reaction.

4 0
3 years ago
39)
ivanzaharov [21]

The correct option to this question will be 'C' i.e., Gorilla Gorilla.

As the number of Differences of the amino acids representing for the beta-haemoglobin is less than other 5 species from humans, so we can say that Gorilla is closely related on the basis of molecular data given in the question. The beta Haemoglobin Gene is responsible for coding a protein which is called beta-globin. Each cell present in humans contains two genes of beta-globin.

5 0
3 years ago
Closing mines has no economic impact on communities.
VladimirAG [237]

Answer:

False. Closing mines has economic impact on communities.

Explanation:

  • Economy is impacted by any hindrance in activities of production,distribution and consumption of any good or services.
  • So, closing mines too has great impact in economic sector of that certain area.
  • In many countries, mining has been the major source of economy and job opportunities for the community people.
  • Closing these mines results in downfall of economy and increased unemployment in that particular community.
5 0
3 years ago
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