Biodiversity Vocabulary for Test Corrections

The statement, "The BIODIVERSITY was greatly reduced" means...

• the variety of species in an ecosystem increased, or got larger

• the number of species in an ecosystem increased, or got larger

• the variety of species in an ecosystem decreased, or got smaller

• the number of species in an ecosystem decreased, or got smaller

The American alligator preys on many herbivorous animals as well as aquatic animals. It helps control the populations of its prey. It also forms holes for dens that once abandoned, can be used by other species for nesting.

Which of the following best describes an American alligator?

• Endangered Species

• Invasive Species

• Preventative Species

• Keystone Species

An INVASIVE SPECIES could cause a DISRUPTION in an ecosystem by...

• helping new EXTINCT species survive

• dramatically increasing the effects of CLIMATE CHANGE

• taking over and changing an entire ECOSYSTEM or FOOD WEB

• creating more space for NATIVE SPECIES

A species that plays a critical role in the health, maintenance, growth, or definition of an ecosystem.

• Keystone

• Invasive

• Predator

• Engineer

The ecological role an organism performs in their specific environment is considered the organism's...

• Habitat

• Population

• Biome

• Niche

What does the word Niche mean?

• What an organism eats

• How an organism gets energy

• The roll an organism plays in the ecosystem

• The type of ecosystem an organism lives in

Which of the following best describes a primary consumer's niche?

• Primary consumers eat plants

• Primary consumers keep the producer populations at a balanced level

• Primary consumers live in trees

• Primary consumers eat small insects

A native species is...

• A species that originated in the ecosystem in which it lives.

• when an animals has fit to survive in their environment.

• indicates the state or level of the ecosystem.

• is used to study the biodiversity in an ecosystem.

An invasive species is...

• A species that out competes other species in its ecosystem.

• used to study an ecosystem, which helps to indicate the state of an ecosystem.

• The changes an animal has made to allow it to better fit its environment.

The cane toad was deliberately introduced into north Queensland in 1935 from Hawaii to control beetles that were feeding on sugarcane. Today, the cane toad have expanded their range to cover the majority of northeastern Australia. Cane toads compete with native species for food and resources.

Which of the following best describes a cane toad?

• Endangered Species

• Invasive Species

• Preventative Species

• Keystone Species