APES Unit 2 Vocabulary

What is the range of genetic material present in a gene pool or population of a species?

• Species Richness
• Population Evenness
• Species Diversity
• Genetic Diversity

Answer explanation

Genetic diversity is the range of genetic material in a population.

Tags

NGSS.MS-LS4-4

An event that drastically reduces the size of a population, leading to a loss of genetic diversity, is called a(n):

• Mass Extinction
• Population Bottleneck
• Natural Selection
• Random Disruption

Answer explanation

A population bottleneck is an event that drastically reduces a population's size and genetic diversity.

Tags

NGSS.MS-LS4-4

The number of different species in an ecosystem and the balance or evenness of their populations is known as:

• Species Richness
• Species Diversity
• Habitat Diversity
• Species Evenness

Answer explanation

Species diversity refers to the number of different species and the balance of their populations within an ecosystem.

Tags

NGSS.MS-LS2-5

The variety of habitats available in a given area is referred to as:

• Ecosystem Diversity
• Genetic Diversity
• Habitat Diversity
• Geographic Range

Answer explanation

Habitat diversity is the variety of habitats available in a specific area.

What is the term for the variety of ecosystems within a given region?

• Species Diversity
• Biome Variety
• Ecosystem Diversity
• Habitat Diversity

Answer explanation

Ecosystem diversity is the variety of ecosystems found within a region.

The number of different species in a community is called:

• Species Evenness
• Species Richness
• Population Size
• Species Diversity

Answer explanation

Species richness is the number of different species in a community.

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

• Genetic Diversity
• Population Density
• Species Evenness
• Species Richness

Answer explanation

Species evenness is the relative proportion of individuals of each species in a given area.

Species that have a narrow niche and rely on a specific set of environmental conditions or resources are called:

• Generalists
• Keystone Species
• Endemic Species
• Specialists

Answer explanation

Specialists are species with a narrow niche that depend on specific environmental conditions or resources.

What is the term for species that have a broad niche, able to live in many different places and eat various types of food?

• Specialists
• Indicator Species
• Generalists
• Pioneer Species

Answer explanation

Generalists are species with a broad niche that can live in many different places and consume various foods.

The full range of environmental conditions and resources an organism can possibly use is its:

• Fundamental Niche
• Realized Niche
• Geographic Range
• Habitat Diversity

Answer explanation

The fundamental niche is the full range of environmental conditions and resources an organism can possibly use without limiting factors or competition.