Quiz---4. Biological Interdependence

What does a food chain show?

• The feeding relationships among living things

• The survival of species

• The balance of nature

• The levels of oxygen and carbon dioxide

What becomes nutrients for plant growth?

• Animal waste and dead animals and plants

• Oxygen and carbon dioxide

• Endangered species

• Urban development

What keeps the levels of oxygen and carbon dioxide in balance?

• The respiration of animals and photosynthesis of plants

• Changes in the number of species

• Urban development

• Overuse of animal and plant resources

What can damage the ecosystem and upset the balance of nature?

• Urban development

• A small change in the number of species

• Endangered species

• Reduce waste

What should be balanced alongside urban development?

• Social development, economic development, and environmental protection

• Oxygen and carbon dioxide levels

• Animal waste and dead animals and plants

• Endangered species

What causes some species to become endangered?

• The overuse of animal and plant resources

• A small change in the number of species

• Oxygen and carbon dioxide levels

• Animal waste and dead animals and plants

In order to protect the ecosystem, what should we treasure?

• Animal and plant resources

• Urban development

• Oxygen and carbon dioxide levels

• Economic development

In order to protect the ecosystem, what should we never buy?

• Products made from endangered species

• Animal waste

• Dead animals

• Dead plants

What do animals breathe in during respiration?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

What do animals breathe out during respiration?

• Carbon dioxide

• Oxygen

• Nitrogen

• Hydrogen