Biodiversity

Which community has higher species evenness?

• Community A

• Community B

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NGSS.MS-LS2-4

What is the species richness of the community?

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NGSS.MS-LS2-5

Species richness is

• a measure of how all of the individual organisms in an ecosystem are balanced between the different species.

• the total number of different species found in an ecosystem

Tags

NGSS.MS-LS2-5

True or false: An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.

• True

• False

Tags

NGSS.MS-LS4-4

Based on the graph shown, what is the effect of removing a keystone species on an ecosystem?

• richness oscillates between extremes

• richness stabilizes

• richness increases

• richness decreases

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

If an area has all the wolves that it can support, the wolf population has reached its _______________________.

• limiting factor
• carrying capacity
• emmigration
• immigration

Tags

NGSS.MS-LS2-4

What does biodiversity mean?

• Only one species in an area.
• The different amount of species in an area
• All abiotic life
• Nitrogen fixation

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NGSS.MS-LS2-2

NGSS.MS-LS2-5

NGSS.MS-LS4-4

All living and nonliving things in an environment and the many ways they interact are called ______

• ecosystem
• community

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NGSS.MS-LS2-3

What human activities have influenced recent extinction events?

• habitat destruction

• poaching

• introducing exotic species

• all of these

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NGSS.HS-LS2-7

NGSS.HS-LS4-5

Hunting sea otters along the U.S. Pacific coast resulted in

• an increase in biodiversity

• the extinction of kelp population

• a decrease in biodiversity

• a reduction in the sea urchin

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NGSS.MS-LS2-1

NGSS.MS-LS2-4