Pearson Science Book 9 - Ecosystems (Chapter 9)

Front 1

Adaptation

Back 1

A feature that an organism has that enables it to survive.

Front 2

Abiotic Factor

Back 2

nonliving factor of the environment.

Front 3

Biotic Factor

Back 3

a living factor of the environment.

Front 4

Commensalism

Back 4

relationship between two organisms, where one benefits and the other is un harmed.

Front 5

Community

Back 5

all the living organisms in an ecosystem.

Front 6

Competition

Back 6

relationship between organisms that are trying to use the same limited resources

Front 7

Ecology

Back 7

the study of how organisms interact with each other and their environment.

Front 8

Ecosystem

Back 8

a place where organisms and their physical surroundings form a balanced environment that is different from others nearby.

Front 9

Ectothermic

Back 9

Animals that obtain body heat from outside their body.

Front 10

Endothermmic

Back 10

Animals that can generate body heat internally.

Front 11

Environment

Back 11

All the factors in an organisms surroundings, that affect it.

Front 12

Habitat

Back 12

Where an organism lives.

Front 13

Interdependence

Back 13

Relationship between organisms, where each affects the others survival.

Front 14

Mutualism

Back 14

Relationship between two organisms living in the same ecosystem where both benefit.

Front 15

Parasitism

Back 15

Relationship between two organisms where one benefits (parasite) and the other is harmed (host).

Front 16

Predation

Back 16

When an organism (predator) kills and eats another (prey).

Front 17

Biodiversity

Back 17

The range of different species in a community.

Front 18

Consumers

Back 18

organisms that require a ready made source of food.

Front 19

Decomposers

Back 19

Organisms that break down bodies of dead organisms and animal wastes, and recycle the material.

Front 20

First - Order - Consumer

Back 20

in the food chain, the position of a herbivore.

Front 21

Food-Chain

Back 21

A sequence of organisms feeding on each other.

Front 22

Keystone Species

Back 22

Species that are critical to the survival of the whole species.

Front 23

Producers

Back 23

organisms that make food for the whole community (USUALLY PLANTS)

Front 24

Pyramid of biomass

Back 24

a diagram that shows the total mass of organisms at each trophic level.

Front 25

Second - Order - Consumer

Back 25

The animal feeding on the First - order - consumer.

Front 26

Third - Order - Consumer

Back 26

The animal feeding on the second order consumer

Front 27

Energy Transfer

Back 27

The movement of energy from one organism to the next in a food chain (represented by arrows, 90% lost at each level).

Front 28

Overcropping

Back 28

killing more animals than the population can replace by its normal breeding cycle.

Front 29

Introduced Species

Back 29

animals and plants brought to Australia from other countries.

Front 30

Natural Events

Back 30

Factors that can affect populations in ecosystems, such as bushfires, droughts and floods.

Front 31

Habitat Destruction

Back 31

Damage caused to an environment that an organism relies on for survival.