Biodiversity Ch 10 Environmental Science

Most of the living species known to science are

• Vertebrates
• Plants
• Insects
• Science Teachers  

A species that is used to represent  cause, act of preservation, or foundation is known as what type of species?

• exotic species
• invasive species
• Flagship species
• Keystone species

________________ a species that is not native to a particular region.

• Invasive Species
• Endangered Species
• Threatened Species
• Endemic Species

This type of diversity refers to the variety of organisms present in a given area.

• Ecosystem Diversity
• Species Diversity
• Genetic Diversity
• Population Diversity

A mass extinction is...

• a rapid increase in biodiversity
• the introduction of exotic species
• the extinction of many species in a short time period
• a benefit to the environment

When sea otters disappeared from the pacific coast of North America, sea urchin population increased which in turn caused the kelp bed to decrease making the ecosystem unstable. These types of species (example: otters) are crucial for the ecosystem balance?

• Endemic species

• Keystone species

• Flagship species

• Cute species species

This type of diversity refers to all the different genes contained within all members of a population.

• Ecosystem Diversity
• Species Diversity
• Genetic Diversity
• Community Diversity

The deforestation of rainforests in South America is example of what specific type of threat to biodiversity?

• Habitat Destruction
• Invasive Species
• Pollution
• Climate Change

The stinkbug eats caterpillars which are common best for farmers.  This belongs to which benefit category of biodiversity?

• Medicinal 
• Recreational
• Agriculture
• Aesthetics

When there is absolutely no individuals left from a specific type of species, we consider them to be?

• Threatened
• Endangered
• Extinct
• Great at playing hide and seek :0