Biodiversity

What is the biosphere?

• The sum of Earth's ecosystems

• A type of terrestrial biome

• A single species on Earth

• A type of genetic diversity

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DOK Level 1: Recall

Approximately how many species have been discovered and identified by biologists?

• 1.7 million

• 3.6 million

• 10 million

• 3.8 billion

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DOK Level 1: Recall

What is the estimated range of the true number of species on Earth?

• 1.7 million to 3.6 million

• 3.6 million to over 10 million

• 10 million to 20 million

• 3.8 billion to 4 billion

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DOK Level 1: Recall

Define the term "biome."

• A single species in an ecosystem

• A major type of terrestrial ecosystem

• A genetic variation within a species

• A type of aquatic ecosystem

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DOK Level 1: Recall

What are the three levels of biodiversity mentioned?

• Species, genetic, and ecosystem diversity

• Terrestrial, aquatic, and atmospheric diversity

• Plant, animal, and microbial diversity

• Local, regional, and global diversity

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DOK Level 1: Recall

Explain why biodiversity is important for humans.

• It provides us with food, wood, fibers, energy, chemicals, and medicines.

• It reduces the number of species on Earth.

• It increases the Earth's temperature.

• It limits the availability of natural resources.

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DOK Level 2: Skill/Concept

What is "biophilia"?

• A type of genetic mutation

• A natural affinity for nature

• A disease affecting plants

• A method of species classification

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DOK Level 1: Recall

How long has life been evolving on Earth?

• 1.7 million years

• 3.6 million years

• 3.8 billion years

• 10 million years

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DOK Level 1: Recall

Identify one way in which biodiversity contributes to human life.

• It decreases the availability of medicines.

• It provides energy resources.

• It limits food production.

• It reduces genetic diversity.

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DOK Level 2: Skill/Concept

What does the term "biodiversity" stand for?

• Biological diversity

• Biome diversity

• Biochemical diversity

• Biophysical diversity

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DOK Level 1: Recall