Essentials Of Bio- Ecology Flash Cards

Front 1

A group of species that live in the same habitat and interact with each other.

Back 1

Community

Front 2

The place where an organism usually lives.

Back 2

Habitat

Front 3

A community of organisms and their abiotic environment.

Back 3

Ecosystem

Front 4

The position (way of life) of a sepecies in an ecosystem in terms of the physical characteristics (such as size, location, temperature and pH) of the area where the species lives and the function of the species in the biological community.

Back 4

Niche

Front 5

A large region characterized by a specific type of climate and certain types of plant and animal communities.

Back 5

Biome

Front 6

The replacement of one type of community by another at a single location over a period of time.

Back 6

Succession

Front 7

A relationship in which two different organisms live in close association with each other.

Back 7

Symbiosis

Front 8

An organism that feeds by breaking down organic matter from dead organisms; examples include bacteria and fungi.

Back 8

Decomposer

Front 9

An organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem.

Back 9

Producer

Front 10

An organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients from inorganic sources.

Back 10

Consumer

Front 11

A diagram that shows the feeding relationships between organisms in an ecosystem.

Back 11

Food Web

Front 12

The pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms.

Back 12

Food Chain

Front 13

A relationship in which two different organisms live in close association with each other.

Back 13

Symbiosis

Front 14

A relationship between two organisms in which one organism benefits and the other is unaffected.

Back 14

Commensalism

Front 15

A relationship between two species in which both species benefit.

Back 15

Mutualsim

Front 16

A relationship between two species in which one species, the parasite, the host, and usually harms the host.

Back 16

Parasitism

Front 17

The place where an organism usually lives.

Back 17

Habitat

Front 18

An animal that eats other animals.

Back 18

Carnivore

Front 19

An animal that eats plants.

Back 19

Herbivore

Front 20

One of the steps in a food chain or food pyramid; examples include producers and primary, secondary, and teritary consumers.

Back 20

Trophic Level

Front 21

A triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain.

Back 21

Energy Pyramid

Front 22

An environmental factor that is associated with or results from the activities of living organisms.

Back 22

Biotic Factor

Front 23

Physical, or nonliving, factor that shapes an ecosystem

Back 23

Abiotic Factor

Front 24

The relationship[ between species that attempt to use the same limited resource.

Back 24

Competition

Front 25

The number and variety of organisms in a given area during a specific period of time.

Back 25

Biodiversity

Front 26

A large region characterized by a specific type of climate and certain types of plant and animal communities.

Back 26

Biome

Front 27

In a biome where there is low precipitation, organisms have adapted to what kind of water?

Back 27

Preserve water

Front 28

When comparing this biome with the dessert, savannah, this biome gets the most precipitation. What is the name of this biome.

Back 28

Taiga

Front 29

What is a worm?

Back 29

A Decomposer

Front 30

The first or primary level of a food web are usually what?

Back 30

Producers

Front 31

What are present at all trophic levels?

Back 31

Decomposers

Front 32

The trophic levels decrease in _____ because there is not enough energy available to support greater ______ at that level.

Back 32

Number, Numbers

Front 33

When humans die, the _____ in the DNA and other areas of the body return to soil.

Back 33

Phosphorus

Front 34

Individual populations will increase in _____ due to the fact that individuals reproduce more than one offspring that survive to reproduce.

Back 34

Size

Front 35

When two species use the same resources, they are said to be in what?

Back 35

Competition

Front 36

If 2 organisms are fierce competitors, and one is removed from the ecosystem. After this, the number of species in that ecosystem was _____?

Back 36

Reduced

Front 37

The process by which one community replaces another community that has been partially or totally destroyed.

Back 37

Secondary Succession

Front 38

Succession that begins in an area that previously did not support life.

Back 38

Primary Succession

Front 39

The largest population that an environment can support at any given time.

Back 39

Carrying Capacity

Front 40

The rate of population growth stays the same and the population size increases steadily.

Back 40

Exponential Growth