Ecosystems

Question 0

Biotic factors

Answer 0

Living things that influence ecosystem

Question 1

Abiotic factors

Answer 1

Non-living condition/ thing eg: climate/ habitat affects ecosystem & orgs

Question 2

Adaptation

Answer 2

Feature org has enables survive

Question 3

Commensalism

Answer 3

Relationship between two orgs, one benefits, other unharmed

Eg: clownfish in sea anemone

Question 4

Community

Answer 4

All living orgs in ecosys

Question 5

Competition

Answer 5

Relationship betwn 2 orgs trying use same limited resource

Eg: baby birds competing for food mothers brought

Question 6

Ecology

Answer 6

Study of how orgs interact with each other & with their Env

Question 7

Ecosys

Answer 7

Place where orgs & their phys surroundings form balanced Env. That’s diff from others nearby

Question 8

Ectothermic

Answer 8

Animals that obtain body heat from outside their body

Question 9

Endothermic

Answer 9

Animals generate heat internally

Question 10

Environment

Answer 10

All the factors in orgs surroundings that affect it

Question 11

Interdependence

Answer 11

Relationship betwn orgs, where each affects other survival

Question 12

Mutualism

Answer 12

Relationship betwn 2 orgs, both benefit

Question 13

Parasitism

Answer 13

Relationship betwn 2 orgs, one live in/on other & feeds off it

Question 14

Physical factor

Answer 14

Non-living or abiotic

Question 15

Predation

Answer 15

Where one kills/eat other

Question 16

Biodiversity

Answer 16

Range of diff species in community

Question 17

Consumers

Answer 17

Orgs require a ready-made source of food

Question 18

Decomposers

Answer 18

Orgs eg: bacteria break down bodies of dead orgs & animal wasted & recycle material

Question 19

Ecological footprint

Answer 19

Area of land & water needed to provide resources necessary 4 survival

Question 20

First-order consumer

Answer 20

Position of herbivore

Question 21

Food chain

Answer 21

sequence of orgs feeding on each other

Question 22

Food web

Answer 22

All linked food chains in ecosys

Question 23

Keystone species

Answer 23

Species critical to survival of whole ecosys

Question 24

Producer

Answer 24

Orgs make food 4 community

Question 25

Productivity

Answer 25

How well area support life

Question 26

Pyramid of biomass

Answer 26

Diagram shows total mass of orgs at each stage of food chain

Question 27

Second-order consumer

Answer 27

Animals feeding on first-order con.

Question 28

Sustainable living

Answer 28

4 humans, Living in way - ensures resources don’t run out & Nat ecosys not damaged

Question 29

Third-order consumer

Answer 29

Animals feeding on 2nd-order con.

Question 30

Chem pollution

Answer 30

Chems escaping into Env - damage ecosys

Question 31

Epicormic growth

Answer 31

Growth of new shoots from stems of trees & shrubs after fires

Question 32

Feral animals

Answer 32

Introduced species- become established in wild

Question 33

Fire stick farming

Answer 33

Hunting method used by Aus abl, vegetation burned to flush out animals & rejuvenate land

Question 34

Globing warming

Answer 34

^ temp of earths atmos

Question 35

Lignotuber

Answer 35

Swollen underground stem of eucalypts that can resist fire

Question 36

Mallee

Answer 36

Type of eucalypt has lignotubers

Question 37

Over cropping

Answer 37

Killing more ani then pop can replace by normal breeding cycle

Question 38

Overpopulation

Answer 38

Too many of a species for ecosys to support them & remain sustainable