ecology

Question 1

symbiosis

Answer 1

relationship between different organisms where at least one benefits

Question 2

pollution

Answer 2

the harmful addition to the environment by humans

Question 3

competition

Answer 3

when 2 or more organisms fight for a resource that is in short supply

Question 4

contest competitions

Answer 4

an active physical confrontation between 2 organisms in which only one wins the resource

Question 5

predation

Answer 5

the act of killing and eating another animal for food

Question 6

predator

Answer 6

an animal which kills and eats an animal

Question 7

scramble competition

Answer 7

a confrontation which results in each organism get some of the resource

Question 8

abiotic factor

Answer 8

a non-living factor e.g. temp

Question 9

biotic factor

Answer 9

living factor e.g. predation

Question 10

carnivore

Answer 10

an animals that eats animals only

Question 11

climatic factor

Answer 11

factors relating to long term weather conditions

Question 12

biosphere

Answer 12

parts of earth that support life

Question 13

conservation

Answer 13

the wise management of the environment or organisms

Question 14

decomposition

Answer 14

the decaying of a dead organism

Question 15

denitrification

Answer 15

the conversion of nitrates into atmospheric nitrogen

Question 16

ecology

Answer 16

study of the interaction between organisms themselves and their environment

Question 17

ecosystem

Answer 17

organisms and their environment e.g. grassland

Question 18

edaphic factor

Answer 18

factor relating to soil

Question 19

food web

Answer 19

interconnected food chains or more than one species at each trophic level

Question 20

grazing food chain

Answer 20

feeding relationship between organisms in which energy is transferred

Question 21

habitat

Answer 21

place where a species lives

Question 22

herbivore

Answer 22

an animal that feeds on plants only

Question 23

niche

Answer 23

the functional role of an organism

Question 24

nitrification

Answer 24

the process of turning ammonia into nitrites and/or nitrites to nitrates

Question 25

nitrogen fixing

Answer 25

the conversion of nitrogen into nitrates

Question 26

omnivore

Answer 26

an animal that eats both plants and animals

Question 27

parasitism

Answer 27

an organism which lives in or on another causing harm

Question 28

population

Answer 28

the number of a particular species

Question 29

prey

Answer 29

the animal hunted and killed by its predator

Question 30

primary consumer

Answer 30

an organism which feeds on the primary producer

Question 31

producer

Answer 31

an organism which makes its own food

Question 32

pyramid of numbers

Answer 32

the amount of organisms at each trophic level

Question 33

qualitative survey

Answer 33

a survey which indicates if an organism is present or not

Question 34

quantitative survey

Answer 34

a survey which records or estimates the numbers of a species

Question 35

secondary consumer

Answer 35

an organism which feeds on the primary consumer

Question 36

tertiary consumer

Answer 36

an organism which feeds on the secondary consumer

Question 37

trophic level

Answer 37

the position of an organism in a food chain

Question 38

community

Answer 38

all the different population in an ecosystem