Human impact ecology- Laurencig

Which is a pioneer species?

• trees
• flowers
• mushrooms
• lichen

Which is an effect of climate change?

• melting of sea ice 
• burning of fossil fuels
• cutting down trees 
• vehicle exhaust

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS3-5

What is biodiversity?

• a population of a species 
• the growth of cities
• destruction of natural habitats
• a variety of organisms 

Tags

NGSS.MS-LS2-5

NGSS.MS-LS4-1

The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas suggests that

• ecosystems are interconnected and human action can alter ecosystem equilibrium.

• recycling programs have failed to conserve biotic resources.

• natural processes can alter ecosystem stability.

• direct harvesting practices have led to irreversible destruction of ecosystems.

Tags

NGSS.MS-ESS3-4

When fertilizers run off farmland into streams and ponds, the nitrogen content of the water increases. This can lead to rapid growth of algae in a process called eutrophication. How can this process affect other organisms in the water?

• Oxygen is used up as algae is decomposed, reducing the amount available to other organisms.
• The water becomes better able to support aerobic organisms.
• The algae provide food for fishes and other organisms, leading to decreased algae populations.
• The extra nitrogen provides additional food for the other organisms, increasing their population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Global warming has been linked to a decrease in 

• the size of the polar ice caps 
• the temperature of Earth 
• the rate of species extinction 
• the rate of carbon dioxide production

Tags

NGSS.MS-ESS3-5

Which human activity is correctly paired with its likely future consequence?

• overfishing in the Atlantic — increase in supply of flounder and salmon as food for people 
• development of electric cars or hybrid vehicles — increased rate of global warming 
• use of fossil fuels — depletion of fossil-fuel based resources and increased CO₂ in atmosphere
• genetically engineering animals — less food available to feed the world’s population

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

In lakes in New York State that are exposed to acid rain, fish populations are declining.  This is primarily due to changes in which lake condition?

• Biotic Factors
• ozone levels
• increased sunlight (optional)
• pH

Tags

NGSS.MS-LS2-4

A large tract of land is purchased by a commercial agricultural company. The land is cleared of its native flora (plants), and a single crop is planted instead. What is the effect of this action?

• There is an increase in the variety of foods.
• The biodiversity of the area is reduced.
• There is a reduction in the size of the land
• The cost of the planted crop increases

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

 Which of the following activities contributes the most to carbon emissions globally?

• Deforestation
• Agriculture
• Burning fossil fuels
• Respiration

Tags

NGSS.MS-ESS3-5