Threats to Biodiversity

Biodiversity refers to

• extinct species
• the variety of species on Earth
• nonrenewable resources
• the rate of species decline

Tags

NGSS.MS-LS2-5

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?

• Increase
• Decrease
• Stay the same
• No affect on smaller fish

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NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-2

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

• introducing new species that  can cause problems 
• habitat destruction
• illegal hunting 
• all of the above

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4

NGSS.MS-ESS3-3

The primary causes of extinction (and endangerment and threatened status) is...

• polar ice cap melting

• global warming

• habitat loss and degradation

• burning of fossil fuels

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4

The number of different species in an area is referred to as its _______________.

• population
• genetic diversity
• biodiversity
• Niche diversity

Tags

NGSS.MS-LS2-5

What is the variety of genes present?

• bidiversity
• species diversity
• extinction
• genetic diversity

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Species that normally live and thrive in a particular ecosystem

• native species

• exotic specis

• invasive species

• keystone species

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4

Which of the following is NOT a component of biodiversity?

• Genetic diversity

• Species diversity

• Habitat diversity

• Ecosystem diversity

The permanent loss of large numbers of species over a relatively short period of geological time is known as

• a big problem.

• a diversity shift.

• an extinction event.

• a single point loss.

Tags

NGSS.MS-LS4-1

The area of our planet with life is called the

• Asthenosphere

• Lithospshere

• Mesosphere

• Biosphere