CMS Biology Unit 3 Summative #2

Which human activity would preserve nonrenewable resources?

• deforestation
• removing carnivores from a forest 
• recycling
• heating homes with fossil fuels  

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Which human activity would most likely deplete nonrenewable resources?

• use of natural enemies to eliminate insect pests
• development of wildlife refuges 
• governmental restriction of industrial pollution 
• increased use of fossil fuels

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NGSS.MS-ESS3-4

Deforestation by burning has been described as a "double whammy" to the environment, meaning it has 2 negative impacts. Why is this description accurate? 

• Forest burning releases CO₂ while decreasing oxygen, which disrupts cycles
• Deforestation reduces the amount of oxygen in the atmosphere, which depletes the ozone layer
• Forest clearing is often followed by land development, which often leads to increased noise pollution
• Deforestation increases the number of plant and animal species by destroying habitat

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Many common products, such as wooden furniture, paper, and books, are made from trees. Which of the following is a likely consequence of humans cutting down a forest in order to make use of the natural resources there? 

• the decrease of chemical runoff into the oceans
• increased acid rain
• the increase of light pollution in cities
• the destruction of habitats

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Which of the following historical events most likely triggered the largest increase in the human population? 

• the Black Death plague, which occurred in the mid-1300s
• the domestication of wheat crops, which began around 8000 B.C
• the fall of the Roman Empire, which occurred around A.D. 800
• the Industrial Revolution, which began in the late 1700s

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NGSS.MS-ESS3-4

Humans often change ecosystems as a result of population growth, consumption, and technology. Which of the following exemplifies a way in which humans modify ecosystems? 

• factory and automotive emissions causing acid rain 
• redirecting and storing freshwater behind dams 
• cutting down trees to build new buildings and roads 
• all of these

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NGSS.MS-ESS3-4

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largest number of individuals of a population that the environment can support  

• carrying capacity
• primary succession 
• denitrification
• mutualism

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What is the biggest threat facing organisms today?

• bioaccumulation
• diseases and parasites
• loss of habitat
• parasite accumulation

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What is the function of autotrophs in an ecosystem?

• Use CO2 to make Sugar
• Use O2 to make Sugar
• to feed on herbivores
• to take in excess water

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How does energy pyramids represent energy flow?

• Energy increases when moving up the energy pyramid
• Energy decreases when moving up the energy pyramid?
• Organisms decrease in size when moving up an energy pyramid

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