Science 9 Unit A Chapter 1

What is biological diversity?

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

Why is biological diversity important?

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

What are the three levels of biological diversity?

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

What is genetic diversity?

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

What is species diversity?

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

What is ecosystem diversity?

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

What are some threats to biological diversity?

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

What is extinction?

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

How does habitat destruction affect biodiversity?

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

What is conservation biology?

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

 Which of the following countries has the most biodiversity?

A. USA

B. Argentina

C. Canada

D. Brazil

D. Brazil

Describe how scientists classify an organism

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.

Why is preserving biological diversity important to life on earth?