4.7 Communities including abiotic and biotic factors Flashcards Preview

11B1 - AQA Biology Trilogy > 4.7 Communities including abiotic and biotic factors > Flashcards

Flashcards in 4.7 Communities including abiotic and biotic factors Deck (19)
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1

An abiotic factor is

the non living part of the environment

2

A biotic factor

is the living part of the environment

3

An Ecosystem is

interactions of all the living and non living components

4

The two forms of competition are

intraspecific and interspecific

5

Intraspecific competition is

competition between organisms of the SAME speecies

6

Interspecific competition is

competition between organisms of DIFFERENT species

7

A species is

a group of similar organisms that can breed successfully and produce fertile offspring

8

A community is

A group of 2 or more populations of species that live in a particular area

9

A population is defined as

The total number of all the organisms of ONE species living in a particular area

10

Animals compete for

mate, water, food, territory

11

Plants compete for

space, water, sunlight and ions

12

Examples of abiotic factors include

water, sunlight, wind speed, ion content of the soil, temperature, carbon dioxide levels, oxygen levels (aquatic organisms)

13

Examples of biotic factors include

predation, disease, food availability, competition

14

Within a community species depend on each other for what..

food, shelter, pollination and seed dispersal

15

The relationship that is described when species in a community depend on each other is called

interdependence

16

A stable community is

where all the species and environmental factors are in balance so population sizes remain fairly constant

17

A predator is

an organism that consumes other animals

18

A prey is

hunted by a predator

19

An invasive species is

an organism that is not native and causes a negative effect