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Topic 9: Ecosystems and Material Cycles
9.1 Ecosystems
9.1.2 Biodiversity
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Biodiversity enhances
ecosystem
stability and resilience.
True
Ecosystem diversity refers to the variety of different ecosystems or
habitats
Biodiversity
refers to the variety of life within a specific
area
Match the level of biodiversity with its example:
Genetic Diversity ↔️ Different breeds of dogs
Species Diversity ↔️ A rainforest's abundant species
Ecosystem Diversity ↔️ Forests, wetlands, grasslands
Order the factors affecting biodiversity from most destructive to least:
1️⃣ Habitat destruction and fragmentation
2️⃣ Pollution and climate change
3️⃣ Invasive species
4️⃣ Overexploitation
5️⃣ Conservation efforts
Conservation efforts aim to protect habitats and reintroduce endangered
species
Genetic diversity is illustrated by different
breeds
of dogs.
True
Ecosystem diversity includes forests, wetlands, and grasslands.
True
Habitat destruction reduces biodiversity by fragmenting
ecosystems
.
True
Conservation efforts can increase biodiversity by reintroducing
endangered
species.
True
Overexploitation of resources can lead to a decline in
biodiversity
.
True
Reintroducing endangered species is a method of protecting biodiversity.
True
Invasive species can outcompete and displace native
species
What are the three main levels of biodiversity?
Genetic, species, ecosystem
What does species diversity measure?
Number of species
Why is biodiversity important for ecosystem stability?
Enhances resilience
How does pollution affect biodiversity?
Disrupts ecosystem balance
What are the effects of habitat fragmentation on biodiversity?
Decreases biodiversity
What is one method of protecting biodiversity through habitat preservation?
Restoring natural areas
How does invasive species control help maintain biodiversity?
Removes non-native species
Biodiversity provides valuable resources such as food and
medicines
Higher biodiversity allows
ecosystems
to better withstand disturbances.
True
Habitat destruction can reduce
biodiversity
.
True
Genetic diversity refers to the variation within a
species
Ecosystem diversity refers to the variety of different
ecosystems
Higher levels of biodiversity allow ecosystems to better withstand disturbances and adapt to
changes
Invasive species reduce biodiversity by outcompeting native
species
Climate change can disrupt ecosystems and cause species to become
extinct
Sustainable resource management ensures resources are used responsibly to protect
biodiversity