Science 9 Unit A Chapter 1

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14 Terms

1

What is biological diversity?

Biological diversity refers to the variety of life forms on Earth, including different species, ecosystems, and genetic variations.

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2

Why is biological diversity important?

Biological diversity is crucial for ecosystem balance, providing resources for food, medicine, and ecosystem services.

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3

What are the three levels of biological diversity?

The three levels are genetic diversity, species diversity, and ecosystem diversity.

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4

What is genetic diversity?

Genetic diversity refers to the variety of genes within a species, affecting its ability to adapt to changing environments.

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5

What is species diversity?

Species diversity refers to the number of different species in a given area and their relative abundance.

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6

What is ecosystem diversity?

Ecosystem diversity encompasses the variety of habitats, communities, and ecological processes in an area.

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7

What are some threats to biological diversity?

Threats include habitat destruction, pollution, climate change, invasive species, and overexploitation.

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8

What is extinction?

Extinction is the permanent loss of a species from the planet, often due to human activities.

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9

How does habitat destruction affect biodiversity?

Habitat destruction reduces the living space for species, leading to population declines and potential extinctions.

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10

What is conservation biology?

Conservation biology is a field that focuses on protecting and managing biodiversity to prevent species extinction and preserve ecosystems.

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11

 Which of the following countries has the most biodiversity?

A. USA

B. Argentina

C. Canada

D. Brazil

D. Brazil

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12

Describe how scientists classify an organism

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13

All living things:

are made up of cells, need energy, grow and develop, reproduce, have adaptations which suit them to the specific habitat in which they live.

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14

Why is preserving biological diversity important to life on earth?

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