Why is biodiversity so important?

What can happen to jungles and reefs even without cataclysmic events?

• They can become more resilient.

• They can grow larger.

• They can become more diverse.

• They can become deserts and lifeless rocks.

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Which of the following is NOT one of the three intertwined features of biodiversity?

• Ecosystem diversity

• Climate diversity

• Species diversity

• Genetic diversity

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Why is the Amazon rainforest considered one of the most biodiverse regions on Earth?

• Because of its large size.

• Due to its complex ecosystems, mix of species, and genetic variety.

• Because it has no predators.

• Due to its high altitude.

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What role do liana vines play in the Amazon rainforest?

• They provide food for herbivores.

• They support towering trees by intertwining with treetops.

• They decompose and recycle nutrients.

• They disperse seeds throughout the forest.

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What happens to species that lack genetic diversity?

• They are more vulnerable to climate change, disease, or habitat fragmentation.

• They become more resilient to changes.

• They become keystone species.

• They thrive in isolation.

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What is the likely outcome if one species is removed from the Amazon rainforest?

• All herbivores will die.

• The entire system will collapse.

• The forest will become a desert.

• The forest can stay resilient and recover from change.

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What is a keystone organism?

• An organism that is the most genetically diverse.

• An organism that lives in isolation.

• An organism that many others depend on for survival.

• An organism that is the largest in its ecosystem.

What are the consequences of losing coral in a reef ecosystem?

• The reef becomes more diverse.

• The reef becomes more resilient.

• Fish populations increase.

• The entire fabric of the reef is threatened.

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How do corals contribute to the biodiversity of a reef?

• By dispersing seeds throughout the reef.

• By decomposing and recycling nutrients.

• By providing key microhabitats, shelter, and breeding grounds.

• By growing thick wooden stems.

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What can biodiversity provide for humans?

• A way to increase population numbers.

• A method to isolate species.

• An insurance policy for survival.

• A source of entertainment.

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