Ecosystems and Biomes

Which biome is characterized by very low temperatures, little precipitation, and permafrost?

• Tropical Rainforest

• Savanna

• Tundra

• Desert

Which of the following best describes biodiversity?

• The number of invasive species in an ecosystem

• The variety of life in a particular habitat or ecosystem

• The similarity of different species in an ecosystem

• The number of keystone species in a biome

Tags

NGSS.MS-LS2-5

What is an invasive species?

• A species that is native to an ecosystem and enhances biodiversity

• A species that is introduced to a new area and causes harm to the native species and ecosystem

• A species that plays a critical role in maintaining the structure of an ecological community

• A species that is the first to colonize previously disrupted or damaged ecosystems

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which species are the first to colonize barren environments in primary succession?

• Keystone species

• Invasive species

• Pioneer species

• Foundation species

What role do keystone species play in an ecosystem?

• They are the first to colonize a new or disturbed environment

• They have a disproportionately large effect on their environment relative to their abundance

• They introduce new diseases to native species

• They decrease biodiversity by outcompeting native species

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which biome is known for having the highest level of biodiversity?

• Tundra

• Desert

• Tropical Rainforest

• Temperate Forest

Tags

NGSS.MS-LS2-5

During secondary succession, which of the following is likely to occur first?

• The appearance of pioneer species

• The development of a climax community

• The colonization by intermediate species

• The soil begins to form

What is the main difference between primary and secondary succession?

• Primary succession starts on bare rock, while secondary succession starts in soil.

• Secondary succession occurs faster because it starts on bare rock.

• Primary succession does not involve pioneer species.

• Secondary succession does not lead to a climax community.

Which of the following is NOT a characteristic of invasive species?

• They often have no natural predators in the new environment.

• They typically reduce the biodiversity of the ecosystem.

• They are always introduced by human activities.

• They can outcompete native species for resources.

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4

What is the primary reason that tropical rainforests have high biodiversity?

• They have a large number of invasive species.

• They are located in cold climates, which supports diverse life forms.

• They receive a high amount of rainfall and have consistent warm temperatures.

• They are primarily found in areas with poor soil nutrients.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS1-5