Environmental Issues and Species Conservation

Chapter 9 covers biodiversity and species extinction, focusing on how extinctions occur and how they can be prevented. It discusses the differences between background and mass extinction rates, highlighting the current anthropogenic mass extinction. The chapter explores endangered species, their characteristics, and the importance of preventing extinction for ecological, economic, and ethical reasons. The HIPGO acronym outlines major extinction causes, including habitat destruction and climate change. The chapter also addresses invasive species, pollution, overexploitation, and legal protections like CITES and the Endangered Species Act. Conservation strategies and education are emphasized as crucial for preserving biodiversity.

What is the primary difference between background extinction and mass extinction?

• Background extinction occurs naturally, while mass extinction is caused by human activities.

• Background extinction is a slow process, while mass extinction involves a rapid loss of species.

• Background extinction affects only plants, while mass extinction affects only animals.

• Background extinction is reversible, while mass extinction is permanent.

Why are plants facing extinction at higher rates than animals?

• Plants have fewer natural predators.

• Plants are less studied than animals.

• Plants are more susceptible to invasive species.

• Plants are less adaptable to climate change.

What does the 'H' in the HIPGO acronym stand for?

• Hydrological changes

• Habitat destruction

• Human interference

• Herbivore decline

Which of the following is an example of a deliberately introduced invasive species?

• Zebra mussel

• Asian carp

• Kudzu vine

• Emerald ash borer

What is bioaccumulation?

• The breakdown of a substance in the environment

• The spread of a substance across different ecosystems

• The increase of a substance in an organism over time

• The decrease of a substance in an organism over time

What was the main environmental concern highlighted in Rachel Carson's 'Silent Spring'?

• Deforestation

• Pesticide use

• Air pollution

• Water pollution

What is a potential cause of colony collapse disorder in honey bees?

• Pesticides

• Overfishing

• Climate change

• Habitat loss

Why are rhinoceroses endangered?

• Competition with other species

• Loss of habitat

• Poaching for their horns

• Climate change

What is the main goal of the CITES treaty?

• To protect marine life

• To ban the trade of endangered species

• To reduce air pollution

• To promote sustainable agriculture

What does the precautionary principle suggest?

• Focus on short-term benefits over long-term risks

• Prioritize economic growth over environmental concerns

• Avoid actions that could cause harm if effects are unknown

• Act only when there is complete certainty