LS2.6 Ecosystem Change Quiz

Habitat fragmentation occurs when…

• An ecosystem is able to recover, or adjust easily to change

• The temperature of ocean water causes algae to leave coral reefs.

• Smaller fragments of a habitat join to make a large habitat

• A large area of habitat is broken up into smaller isolated areas

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Why is habitat fragmentation hazardous to animals?

• Animals may not thrive in their new habitat

• If coral reefs die, so will many fish species that depend on them

• Habitat fragmentation causes loss of habitat for many organisms

• Habitat fragmentation does not pose a threat to animals.

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A resilient ecosystem…(2 answers)

• Is able to recover from, or adjust easily to change.

• Has less biodiversity due to invasive species.

• Has been impacted by a natural disaster such as a tornado.

• Is more likely to have greater biodiversity

What is the environmental variable that caused The Great Smoky Mountains to be less resilient during the 2016 fire?

• Hurricane

• Tornado

• Drought

• Earthquake

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What happened as a result of The Great Smoky Mountains 2016 fire?

• $1 million worth of damage, 1,000 acres burned, injuries, decreased biodiversity

• $ 8 million worth of damage, 5, 000 acres burned , increased biodiversity

• $ 10 million worth of damage, 8,000 acres burned, increased biodiversity

• $ 500 million worth of damage, 17, 000 acres burned, decreased biodiversity

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Human activities such as deforestation, transportation, and industry are causing…

• Increased biodiversity in many ecosystems

• Increased carbon dioxide levels in the atmosphere

• more resilient ecosystems

• None of the above

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Coral bleaching occurs when…

• Chemicals, such as bleach, make their way into ocean water.

• Pollutants are introduced into Freshwater ecosystems

• Rising temperatures or pollution cause algae to leave the coral

• The sun’s energy reaches the coral reef, turning it white

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Why are coral reefs so important to our ocean ecosystems?

• Many other species depend on them for a habitat

• Many tourist travel to see the coral reef, and spend money supporting local economies

• Many endangered fish species eat coral skeletons for their main source of nutrients

• They are beautiful, and surrounded by diverse fish species

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How might acid rain impact the following ecosystem? (2 answers)

• Increases in certain chemicals damage plant structure, causing the plants to be less resilient

• Acid rain will melt everything in its path, including humans

• Certain chemicals can build up in the bodies of smaller fish species, hurting them and other organisms that feed on them

• Certain chemicals improve soil quality, causing plants to grow taller

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Having a dry climate is a characteristic of which 2 biomes?

• Tundra and Taiga

• Tundra and desert

• Deciduous Forest and Rainforest

• Desert and Grasslands