Threats to Biodiversity

Front

Biodiversity refers to

Back

the variety of species on Earth

Front

What makes a species invasive?

Back

Moving to a new ecosystem and taking resources from natives 

Front

If a blue catfish is introduced and eats the large fish who eat the smaller fish, what will happen to the population of the smaller fish?

Back

Increase

Front

Invasive species have a negative impact on...

Back

Both the ecosystem and the economy

Front

Why do the populations of invasive species grow so quickly?

Back

Invasive species have no predators.

Front

An endangered species is

Back

One whose numbers are so small that it is at risk of extinction

Front

When is a species defined as endangered?

Back

When it suffers from damage to its habitat, disease or predation, and hazards to its continued life.

Front

What are the greatest problems facing plants, animals, and people?

Back

all of the above

Front

The primary causes of extinction (and endangerment and threatened status) is...
Options: polar ice cap melting, global warming, habitat loss and degradation, burning of fossil fuels

Back

habitat loss and degradation

Front

How does habitat fragmentation reduce genetic diversity in species?

Back

Habitat fragmentation isolates a large population into smaller groups.