Biodiversity

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

Which island would be the most biodiverse?

• Small island far from the mainland

• Small island close to the mainland

• Large island close to the mainland

• Large island far from the mainland

Tags

NGSS.MS-LS2-5

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

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which community has higher species evenness?

• Community A

• Community B

Tags

NGSS.MS-LS2-4

A Simpson's Diversity Index of 1 is ​ ​ (a)   ​

• low

• high

Tags

NGSS.HS-LS2-2

Species richness refers to (a)   in an ecosystem.

• The number of different ecosystems

• The number of individuals within an ecosystem

• number of different species in an ecosystem

• The number of dominant species in an ecosystem

Tags

NGSS.MS-LS2-5

Match the following terms with the correct definition -

• A species of animal or plant that is seriously at risk of extinction.

• Evolution

• An organism that is not native to the area in which it is introduced and has no natural predators.

• Species diversity

• The cumulative changes in a population or species over time.

• Genetic diversity

• The total number of genetic characteristics in the genetic makeup of a species.

• Invasive species

• The number of different species present in an ecosystem.

• Endangered Species

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Match the following terms with their definition.

• the most abundant species

• Species Richness

• the relative abundance of species

• Species Dominance

• the total # of different species

• Species Evenness

Tags

NGSS.MS-LS2-5

Match the following reasons with the correct explanation for the uneven distribution of biodiversity on Earth.

• Explanation for regions where biodiversity thrives with warmer conditions

• Due to the decrease in human population density

• Explanation for the impact of reduced human activities on biodiversity distribution

• Because of the consistent climate conditions worldwide

• Explanation for the rarity of diverse ecosystems in areas with similar climate patterns

• Because of the uniform distribution of water

• Explanation for areas with scarce biodiversity due to lack of water resources

• Due to the increase in temperature

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

What is the species richness of the community?

Tags

NGSS.MS-LS2-5