ch 37 OBJ

What are the three components of biodiversity?

• Ecosystem, species, and genetic diversity

• Habitat, climate, and species diversity

• Genetic, environmental, and species diversity

• Ecosystem, climate, and genetic diversity

Which of the following is a current threat to biodiversity?

• Habitat loss and fragmentation

• Increased rainfall

• Decreased pollution

• Expansion of forests

What is biological magnification?

• Concentration of toxins that can't be reduced

• Increase in species diversity

• Decrease in genetic variation

• Expansion of ecosystems

What is a consequence of global warming?

• Decrease in global temperature

• Increase in global temperature

• Stabilization of climate

• Reduction in greenhouse gases

How can saving the black-footed ferret help biodiversity?

• It counters the loss of biodiversity

• It increases pollution

• It reduces genetic diversity

• It decreases species population

What is the significance of edges in landscape ecology?

• They connect isolated habitats

• They increase pollution

• They reduce biodiversity

• They separate ecosystems

Why are biodiversity hot spots significant?

• They provide good places for conservation

• They increase pollution

• They reduce species diversity

• They are not important for conservation