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APES Unit 2
What is a generalist species?
What is a cultural service?
APES Unit 2
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1
What is a cultural service?
Habitat preservation
The study of ancient societies
Aesthetic and recreational benefits from nature
Water purification
2
What is a generalist species?
A species that can live in a wide range of conditions
A species that relies on one food source
A species with a narrow diet
A rare species
3
What does species richness mean?
The number of organisms in a population
The size of the ecosystem
The number of different species in an area
The genetic variety in a species
4
What is primary succession?
Succession in a previously uninhabited area
A result of invasive species
The return of species after a flood
Succession in an area with existing soil
5
What is habitat fragmentation?
The complete loss of a habitat
A natural process that increases diversity
The spread of new species
The breaking up of a habitat into smaller pieces
6
What is a regulating service?
Services that support agriculture
Services that provide raw materials
Services that maintain ecosystem stability
Services that reduce biodiversity
7
What is a provisioning service?
A resource provided directly from ecosystems
The process of pollination
The cycling of nutrients
A service that regulates climate
8
What is ecosystem diversity?
The levels of the food web
The variety of species in a population
The different ecosystems within a region
The number of individuals in a species
9
What is a specialist species?
A species that thrives in any environment
A top predator
A species adapted to a narrow ecological niche
A species with a broad niche
10
What is biodiversity?
The energy in an ecosystem
The total number of organisms in an area
The number of food chains
The variety of life in the world or a particular habitat
11
What is ecological tolerance?
The number of individuals in an area
The ability of species to avoid extinction
The range of conditions a species can endure
The amount of food available
12
What is an ecosystem service?
A scientific observation
A benefit humans get from ecosystems
A law protecting nature
A product bought from the environment
13
What is an invasive species?
A predator species
A species introduced that harms native ecosystems
A species that supports biodiversity
A native species in a new habitat
14
What is natural selection?
The extinction of the weakest organisms
The change in weather patterns
The result of human intervention
The process by which organisms adapt and survive
15
What is ecological succession?
The extinction of keystone species
The gradual change in species composition over time
The development of agriculture
The destruction of an ecosystem
16
What is secondary succession?
The extinction of large species
Growth on bare rock
Succession after a disturbance in an existing ecosystem
Succession starting with no life
17
What is species evenness?
The balance of predators and prey
The relative abundance of each species
The total number of species
The ability of species to reproduce
18
What is genetic diversity?
The physical size of an organism
The number of species in a habitat
The number of genes in an ecosystem
The variety of genes within a population
19
What is a keystone species?
A predator that eats only plants
A recently introduced species
A species that has a large effect on its ecosystem
A species with the highest population
20
What is a supporting service?
Services that enable other ecosystem services
Services that aid economic development
Services that support cultural values
Services related to transportation
