Biodiversity Review

Which of the following statements is true concerning biodiversity?

• Biodiversity is the diversity of species in an area, which leaves an ecosystem ill equipped to handle major changes.

• None of these are true.

• Biodiversity is the diversity of species in an area, which makes an ecosystem better prepared for major changes.

• Biodiversity is the lack of a diversity of species in an area.

Tags

NGSS.MS-LS2-5

Secondary succession takes place in an area where -

• no soil or organisms were previously present.

• large organisms out compete smaller organisms

• wildfires removed existing prairie grass species.

• weeds grow in a garden next to vegetables.

How is the number of species in an ecosystem related to the stage of ecological succession?

• The number of species decreases as an ecosystem matures.

• The number of species increases and then decreases as succession progresses.

• The number of species present when succession begins remains the same.

• The number of species increases as succession proceeds.

Tags

NGSS.MS-LS2-4

The diagrams represent events that occurred during succession in a pond.

• A --> B --> C --> D

• C --> A --> D --> B

• B --> A --> D --> C

• B --> D --> A --> C

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

Which ecosystem most likely has the greatest biological diversity and therefore the highest sustainability?

• a tundra region that has many penguins

• a pine tree in which three groups of birds live

• a rain forest that has many different types of plants and animals

• a tank that includes several goldfish

Tags

NGSS.MS-LS2-5

The graph above shows the total number of species among vertebrates (animals with a backbone). Why do bony fish have a good chance of at least some species surviving a major environmental change?

• bony fish are the most genetically complex species of vertebrates

• the ocean environment is the most resistant to environmental change

• all of the bony fish species are restricted to same environment

• bony fish have the greatest diversity of species

Tags

NGSS.MS-LS2-4

Woodpeckers live in forests, backyards and various other types of habitats. Which would most likely cause a decrease in the number of woodpeckers in an ecosystem?

• plowing and planting meadows

• destroying all dead trees and stumps

• draining a spring-fed pond

• building a road around a small forest

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which statement best describes ecosystems?

• They constantly change in different ways over time.

• Ecosystems always revert back to their original state.

• They can never change once they are established.

• Each ecosystem can exist for only a specific length of time.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

The Miami Blue butterfly is an endangered species in South Florida. Which factor has most likely caused the population decline of this butterfly?

• increase in the number of parks

• decline in the amount of seawater

• increase in number of homes built

• decline in the amount of predators

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-ESS3-4

How is secondary succession different from primary succession?

• Secondary succession occurs when animals are introduced to an area that had only plants.

• Secondary succession occurs over a longer period of time than primary succession.

• Secondary succession occurs after a disturbance in an area that was previously uninhabited.

• Secondary succession occurs after a disturbance in an area in which the soil has remained intact.