Chapter 4: Ecosystems And Communities Sections 4-1&4-2

Front 2

Define Weather

Back 2

The day to day condition of Earth's atmosphere at a particular time and place.

Front 3

Define Climate

Back 3

The average year after year condition of temperatur and precipitation in a particular region.

Front 4

Define Greenhouse Effect

Back 4

The natural situation in which heat is retained by the layer of greenhouse gases.

Front 5

Define Polar Zones

Back 5

Cold areas where the sun's rays strike the Earth at a very low angle.

Front 6

Define Temperate Zones

Back 6

Moderate Climate between the polar zones and the tropics.

Front 7

Define Tropical Zone

Back 7

Warm climate zone that receives direct or nearly direct sunlight all year.

Front 8

Define Biotic Factor

Back 8

The Biological influences on organisms within an ecosystem.

Front 9

Define Abiotic Factor

Back 9

Physical, or non-living factors that shape an organism.

Front 10

Define Habitat

Back 10

The area where an organism lives.

Front 11

Define Niche

Back 11

The full range of physical and biological in which an organism lives and the way in which the organism uses thoses conditions.

Front 12

Define Resource

Back 12

Any necessity of life such as water, nutrients, light, food, or space.

Front 13

Define Competitive exclusion principle

Back 13

Ecological rule that states that no two organisms can occupy the same exact niche in the same habitat at the same time

Front 14

Define Predation

Back 14

An interaction in which one organism captures and feeds on another organism.

Front 15

Define Sybiosis

Back 15

Any relationship in which two species live closely together.

Front 16

Define Mutualism

Back 16

A relationship in which both species benefit from.

Front 17

Define Commensalism

Back 17

A relationship in which one of the species benefits, while the other is neither harmed nor benefits from.

Front 18

Define Parasitism

Back 18

A relationship in which one organism lives on or inside another organism and harms it.

Front 19

Define Ecological Succession

Back 19

A series of predictable changes that occurs in a community over time.

Front 20

Define Primary Succession

Back 20

Succession that occurs on surfaces where no soil exists.

Front 21

Define Pioneer Species

Back 21

The first species to populate an area during primary succession.

Front 22

Define Secondary Succession

Back 22

Succession following a disturbance that destroys a community but does not destroy the soil.