Chp 4, 5 +6 Ecology

Question 1

Ecology

Answer 1

Study of interactions between living organism and between organisms and their environment

Question 2

Biosphere

Answer 2

Part of the planet containing living organism

Question 3

Ecosystem

Answer 3

Group of clearly distinguished organisms that interact with their environment as a unit

Question 4

Habitat

Answer 4

Place where a plant or animal live

Question 5

Population

Answer 5

Number of particular species living in a particular ecosystem

Question 6

Community

Answer 6

Populations of different species living and interacting with each other in the same habitat

Question 7

Biotic factor

Answer 7

Living factor
Organism’s influence on another organism

Question 8

Competition

Answer 8

Two or more organisms that fight for a resource that is short in supply

Question 9

Abiotic factor

Answer 9

Non- living factor

Question 10

Climatic factor

Answer 10

Weather over a long period of time

Question 11

Edaphic factors

Answer 11

Relates to soil

Question 12

Food chain

Answer 12

Feeding relationships between organisms in which energy is transferred

Question 13

Trophic level

Answer 13

Feeding stage in a food chain

Question 14

Food web

Answer 14

Consist 2 or more intersecting food chains

Question 15

Ecological pyramids

Answer 15

Used to show numbers of organisms in an ecosystem

Question 16

Pyramid of numbers

Answer 16

Used to show numbers of organisms at each trophic level of a food chain

Question 17

Inverted pyramid of numbers

Answer 17

Pyramid of numbers doesn’t take into account size of organisms
A tree can support thousands of caterpillars

Question 18

Niche

Answer 18

Role of an organisms in an ecosystem
How it lives + does in its community

Question 19

Nodules

Answer 19

Converts atmospheric nitrogen to nitrate

Question 20

Nitrogen fixation

Answer 20

Process of nitrogen in air converted into nitrate

Question 21

Nitrification

Answer 21

Conversion of ammonia to nitrites/ nitrates

Question 22

Denitrification

Answer 22

Conversion of nitrates to nitrogen gas

Question 23

Pollution

Answer 23

Addition of harmful substance to the environment

Question 24

Pollutants

Answer 24

Anything that causes pollution

Question 25

Eutrophication

Answer 25

Nutrients accumulating in water causing increase growth of microorganisms in water

Question 26

Conservation

Answer 26

Management of our environment, which will prevent the death and extinction of organisms

Question 27

Contest

Answer 27

Active physical confrontation whereby only one wins the resource

Question 28

Scramble

Answer 28

Struggle between organisms for resource, whereby each organisms get some resource

Question 29

Predation

Answer 29

Act of hunting, killing and eating prey

Question 30

Predator

Answer 30

Organisms that does the hunting

Question 31

Prey

Answer 31

Organisms eaten by predator

Question 32

Symbiosis

Answer 32

Close relationship between two organism of different species in which at least one of them benefit

Question 33

Parasitism

Answer 33

Relationship between 2 organisms of 2different species where one benefits and does harm to other

Question 34

Endoparasites

Answer 34

Live inside hosts

Question 35

Ectoparasites

Answer 35

Live outside host

Question 36

Mutualism

Answer 36

Close relationship between 2 organisms which both benefits

Question 37

Population dynamics

Answer 37

Study of changes that occur in a population and the factors that causes these changes

Question 38

Flora

Answer 38

Plants

Question 39

Fauna

Answer 39

Animals

Question 40

Key

Answer 40

A mean of naming organisms by answering a series of question

Question 41

Tullgren funnel

Answer 41

Heat from light causes insects to move down

Question 42

Qualitative study

Answer 42

Records the presence or absence of species

Question 43

Quantitative study

Answer 43

Record number of each species

Question 44

Percentage cover

Answer 44

Estimate of the amount of ground in a quadrant is covered by a species

Question 45

Percentage frequency

Answer 45

Chances of finding a named species with any one throw of the quadrant

Question 46

Line transect

Answer 46

Rope marked at intervals Record what touches the line and measure environmental at each

Question 47

Capture recapture

Answer 47

Number caught and marked 1st x number caught 2nd / Number caught that are marked 2nd