Ecology

Question 0

Quantative study

Answer 0

Records the numbers or amounts present

Question 1

Adaption

Answer 1

Any alteration that improves an organisms chance of survival

Question 2

Qualitative study

Answer 2

Records the presence or absence of something

Question 3

Ecosystem

Answer 3

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

Question 4

Ecological niche

Answer 4

The functional role an organism plays in the community

Question 5

Nutrient recycling

Answer 5

The way in which elements are exchanged between living and non-living organisms

Question 6

Eutrophication

Answer 6

Addition of nutrients to fresh water in the form of slurry causes algal blooms. When algae die, bacteria decompose use up all oxygen, organisms die

Question 7

Habitat

Answer 7

The place where a plant or animal lives

Question 8

Symbiosis

Answer 8

2 organisms of different species live in close association and at least one benefits

Question 9

Grazing food chain

Answer 9

Sequence of organisms in which each one is eaten by the next member in the chain

Question 10

Ecology

Answer 10

The study of the interaction between organisms and between organisms and their environment

Question 11

Exoparasites/ ectoparasites

Answer 11

Live outside the host e.g dog fleas, mosquitoes

Question 12

Conservation

Answer 12

Wise management of natural resources in order to maintain a wide range of habitats and prevent the death and extinction of organisms

Question 13

Denitrification

Answer 13

Conversion of nitrates to nitrogen gas

Question 14

Inter-specific Competition

Answer 14

Occurs between members of a different species

Question 15

Edaphic Factors

Answer 15

Relate to soil i.e pH, type, moisture,

air + mineral content

Question 16

Parasitism

Answer 16

Two organisms of different species live in close association with one another and one organism (parasite) obtains it’s food from, to the disadvantage of the second organism (host)

Question 17

Pyramid of Numbers

Answer 17

Represents the number of organisms at each tropic level

Question 18

Biosphere

Answer 18

Part of the planet that contains living organisms

Question 19

Intra-specific Competion

Answer 19

Takes place between members of the same species

Question 20

Producers

Answer 20

Organisms that carry out photosynthesis

Question 21

Consumers

Answer 21

Organisms that take in food from other organisms

Question 22

Population

Answer 22

All members of the same species living in an area

Question 23

Community

Answer 23

All the different populations in an

area

Question 24

Contest competition

Answer 24

There is an active physical contest between two individual organisms

Question 25

Scramble competition

Answer 25

All off the competing individuals get some of the resource

Question 26

Predator

Answer 26

Organism that catches kills and eats

Question 27

Prey

Answer 27

Organism eaten

Question 28

Predation

Answer 28

Catching, killing, eating of an organism

Question 29

Food Web

Answer 29

Consists of one or more interlinked food chains

Question 30

Biotic Factors

Answer 30

Living factors

Question 31

Abiotic Factors

Answer 31

Non-living factors

Question 32

Nitrification

Answer 32

The conversion of ammonia and ammonium compounds to nitrite then nitrate

Question 33

Pollution

Answer 33

Any harmful addition to the environment

Question 34

Pollutants

Answer 34

Substances that cause pollution

Question 35

Climatic Factors

Answer 35

Refer to weather over a long period of time

Question 36

Competition

Answer 36

Occurs when organisms actively struggle for a resource that is in short supply

Question 37

Endoparasites

Answer 37

Live inside the host e.g potato blight, bacteria of disease in the human body

Question 38

Factors that control the size of a population

Answer 38

Competition, parasitism, predation, symbiosis

Question 39

Nitrogen fixation

Answer 39

The conversion of nitrogen gas to ammonia (NH3), ammonium (NH4+),
or nitrate (NO3-)