How can the reintroduction of wolves into Yellowstone National Park change the path of the rivers?

The wolves changed the behavior of the elk, so they no longer gathered in the valleys near the water, causing erosion. The river banks began to grow more vegetation, which stabilized their banks.

The wolves dug big holes, causing the river to turn into a pond.

The wolves tore through paths along the river causing erosion and making the river wider.

The wolves had nothing to do with the path of the river.

I can have an impact on the local biodiversity by... (many answers)

Voting for biodiversity projects in my community

Preserving/creating habitat for local wildlife in my backyard or porch.

Biodiversity and Conservation Class 9 MCQ Questions With Answers Quiz

15.

An example of overexploitation of a species is...

the over hunting of bison of North America, because by 1889 there were fewer than 1,000 left.

The passenger pigeons that used to darken the skies of North America, were over hunted and by the early 1900's were extinct.

The ocelot (wild cat) over hunted for its' fur and is now extinct.

White rhinoceroses that was over hunted for its' horn, and is now extinct.

All of above

1.

In this phenomenon, the algae use up the oxygen supply during their rapid growth and after their deaths during the decaying process. Other organisms in the water suffocate.

2.

Some scientists believe that we are in a period of mass extinction because a large percentage of all living species are being hit by comets everyday.

3.

includes thing like minerals, fossil fuels, plants, animals, clean water, and solar energy.

4.

The number of different species and the abundance of each species in a biological community.

5.

The use of a resource at a rate that can be replaced or recycled is called ____________ use.

6.

The breaking of habitats into smaller pieces is called...

7.

Excessive use, of species that have economic value is a factor increasing the current rate of extinction.

8.

The use of living natural organisms to detoxify a polluted area?

9.

People in more developed countries, like America and Europe, use less natural resources than people in less developed countries, like Africa.

10.

How can the reintroduction of wolves into Yellowstone National Park change the path of the rivers?

11.

Almost ____ of the world's species are found in 5 biodiversity hotspots.

12.

I can have an impact on the local biodiversity by... (many answers)

13.

_______ happens when fertilizers, animal waste, sewage or other substances rich in nitrogen and phosphorus are lost into waterways causing excessive algae growth.

14.

Nonnative species that are either intentionally orunintentionally transported to a new habitat.

15.

An example of overexploitation of a species is...

16.

Atmospheric chemical changes that threaten biodiversityand global stability.

17.

Resources that are replaced by natural processes faster than they are consumed.

18.

The variety of genes or inheritable characteristics that are present in a population.

19.

The variety of life in an area that is determined by the number of different species in that area.

20.

The declining population of one species can affect an entireecosystem.

21.

The use of a oil-eating bacteria to clean up an oil spill way is an example of:

Time

1. In this phenomenon, the algae use up the oxygen supply during their rapid growth and after their deaths during the decaying process. Other organisms in the water suffocate.

2. Some scientists believe that we are in a period of mass extinction because a large percentage of all living species are being hit by comets everyday.

3. ______ ______ includes thing like minerals, fossil fuels, plants, animals, clean water, and solar energy.

4. The number of different species and the abundance of each species in a biological community.

5. The use of a resource at a rate that can be replaced or recycled is called ____________ use.

6. The breaking of habitats into smaller pieces is called...

7. Excessive use, of species that have economic value is a factor increasing the current rate of extinction.

8. The use of living natural organisms to detoxify a polluted area?

9. People in more developed countries, like America and Europe, use less natural resources than people in less developed countries, like Africa.

10. How can the reintroduction of wolves into Yellowstone National Park change the path of the rivers?

11. Almost ____ of the world's species are found in 5 biodiversity hotspots.

12. I can have an impact on the local biodiversity by... (many answers)

13. _______ happens when fertilizers, animal waste, sewage or other substances rich in nitrogen and phosphorus are lost into waterways causing excessive algae growth.

14. Nonnative species that are either intentionally orunintentionally transported to a new habitat.

15. An example of overexploitation of a species is...

16. Atmospheric chemical changes that threaten biodiversityand global stability.

17. Resources that are replaced by natural processes faster than they are consumed.

18. The variety of genes or inheritable characteristics that are present in a population.

19. The variety of life in an area that is determined by the number of different species in that area.

20. The declining population of one species can affect an entireecosystem.

21. The use of a oil-eating bacteria to clean up an oil spill way is an example of:

Time

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1.

In this phenomenon, the algae use up the oxygen supply during their rapid growth and after their deaths during the decaying process. Other organisms in the water suffocate.

2.

Some scientists believe that we are in a period of mass extinction because a large percentage of all living species are being hit by comets everyday.

3.

includes thing like minerals, fossil fuels, plants, animals, clean water, and solar energy.

4.

The number of different species and the abundance of each species in a biological community.

5.

The use of a resource at a rate that can be replaced or recycled is called ____________ use.

6.

The breaking of habitats into smaller pieces is called...

7.

Excessive use, of species that have economic value is a factor increasing the current rate of extinction.

8.

The use of living natural organisms to detoxify a polluted area?

9.

People in more developed countries, like America and Europe, use less natural resources than people in less developed countries, like Africa.

10.

How can the reintroduction of wolves into Yellowstone National Park change the path of the rivers?

11.

Almost ____ of the world's species are found in 5 biodiversity hotspots.

12.

I can have an impact on the local biodiversity by... (many answers)

13.

_______ happens when fertilizers, animal waste, sewage or other substances rich in nitrogen and phosphorus are lost into waterways causing excessive algae growth.

14.

Nonnative species that are either intentionally orunintentionally transported to a new habitat.

15.

An example of overexploitation of a species is...

16.

Atmospheric chemical changes that threaten biodiversityand global stability.

17.

Resources that are replaced by natural processes faster than they are consumed.

18.

The variety of genes or inheritable characteristics that are present in a population.

19.

The variety of life in an area that is determined by the number of different species in that area.

20.

The declining population of one species can affect an entireecosystem.

21.

The use of a oil-eating bacteria to clean up an oil spill way is an example of: