Unit 2 APES Biodiversity

The total number of different species in a given area is called

• species richness

• evolution

• species evenness

• phylogeny

A species that can tolerate a very wide range of abiotic or biotic conditions.

• generalist

• specialist

• endemic species

• invasive species

Tags

NGSS.MS-LS4-4

A species that lives in a very small area of the world and nowhere else.

• niche generalist

• keystone species

• endemic species

• invasive species

Which of the following best explains how environmental stressors, such as wildfires, can affect biodiversity in an ecosystem?

• After an environmental stress, a genetic bottleneck may occur, which will increase genetic diversity.

• Habitat diversity will increase the available niches if the landscape becomes more uniform after a disturbance.

• Ecosystems with more species diversity are more likely to recover after a disturbance than ecosystems with low species diversity.

• Smaller populations are less likely to go extinct than larger populations, so the species diversity will remain constant.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Highly specialized species tend to evolve on islands because of the environmental conditions and resource availability. Based on the theory of island biogeography, which of the following would most likely experience the greatest decline of specialist species if an invasive species emigrated from the mainland?

• A small island a far distance from the mainland

• A small island in close proximity to the mainland

• A large island a far distance from the mainland

• A large island in close proximity to the mainland

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

What island would have the greatest biodiversity according to the theory of island biogeography?

• a small island that's far from the mainland

• a small island that is close to the mainland

• a large island that's far from the mainland

• a large island that is close to the mainland

Tags

NGSS.MS-LS2-5

Ecological Zone where organisms are unable to survive.

• zone of intolorance

• range of tolerance

• optimal range

• zone of physiological stress

Ecological tolerance is

• the relationship in which two species live close together.

• series of gradual changes that occur in a community following a disturbance.

• any living environmental factor such a predation or competition for food.

• the range of abiotic conditions that an organism or species is able to survive in.

Why did dark-colored rock pocket mice first appear in a population of light-colored rock pocket mice?

• They have a genetic mutation that affects their fur color.

• There is dark lava rock in the area where they originally lived.

• Individuals change color to blend in with the environment.

• Predators ate all of the light-colored rock pocket mice. 

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-1

The relative proportion of individuals within the different species of a given area

• species richness

• evolution

• species evenness

• phylogeny