Human Impact on Biodiversity

The largest threat to biodiversity is

• bacteria

• humans

• fungi

• plants

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The loss of a natural habitat is called:

• Habitat Development

• Pollution

• Biodiversity

• Habitat Destruction

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

• habitat division

• habitat corruption

• habitat pollution

• habitat fragmentation

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Why is habitat fragmentation hazardous to animals?

• Animals may not thrive in their new habitat

• Habitat fragmentation causes loss of habitat for many organisms

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

• Habitat fragmentation does not pose a threat to animals.

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Habitat fragmentation occurs when...

• an ecosystem is able to recover, or adjust easily to change.

• smaller fragments of a habitat join to make a large habitat.

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

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

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What are the greatest problems facing plants, animals and people?

• Introducing new species that can cause problems

• Illegal hunting

• Habitat desctruction

• All of the above

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Why does the populations of invasive species grow so quickly?

• Invasive species are native to an area

• Invasive species have no predators

• Invasive species are prey to many animals

• Invasive species keep the ecosystems in equilibrium

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What makes a species invasive?

• Moving to a new ecosystem and taking resources from natives

• Species that cannot adapt

• Not having prey

• Plants that take up too much space

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Climate change causes extreme weather conditions such as:

• Flooding

• Hurricanes

• Heat Waves

• All of the above

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How does plastic effect sea life?

• Microplastics create dead zones in the oceans

• Wildlife such as dolphins, seals and seabirds often eat plastic, mistaking it for food

• Plastics provide habitats for marine life

• None of the above

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