Biology 6.3

Multiple Choice

Ecological biodiversity is

• the number of species in an ecosystem

• the diversity of genetic information within a species or within all species on the planet

• the variety of habitats, communities, & ecological processes in the biosphere

• the diversity of behaviors among a species within their environment

Multiple Choice

Human development that causes a formerly large habitat to be chopped into small "islands" of habitat is damaging to populations because

• biodiverstiy is reduced

• small, isolated populations are more susceptible to disturbances

• there is less space for indiiduals to breed, find food & water, & find shelter

• all of these

Multiple Choice

Species that are brought to new environments by humans usually

• benefit the local biodiversity

• have little effect on biodiversity

• have unknown effects on biodiversity

• are a threat to biodiversity

Multiple Choice

The most important efforts used today to protect biodiversity involve

• protecting whole ecosystems

• restricting hunting

• breeding new crops

• moving animals to zoos

Multiple Choice

Ecological hotspots are important for conservation biologists to identify because

• they can focus their attention on other areas, which have less biodiversity

• they can focus their conservation efforts on these areas, which need immediate attention

• ecological hotspots do not require large amounts of resources to protect

• ecological hotspots are stable communities that have not been affected by human development