Ecosystem And Material cycles

Question 1

Population

Answer 1

Group of individuals of the same species

Question 2

Community

Answer 2

When several populations of a different species across all kingdoms live in a habitat

Question 3

Habitat

Answer 3

Is a place where an organism lives

Question 4

Ecosystem

Answer 4

When communities interact with each other (biotic) as well as the environment (abiotic)

Question 5

Biotic

Answer 5

Living components in an ecosystem

Question 6

Abiotic

Answer 6

Non-living conditions that can influence where plants or non animals live

Question 7

Abundance

Answer 7

A measure of how common something is

Question 8

Community

Answer 8

All the different organisms living and interacting with one another in a particular area

Question 9

Food web

Answer 9

A diagram of interlinked food chains. It shows how the feeding relationships in a community are interdependent

Question 10

Habitat

Answer 10

The place in which an organism lives

Question 11

Interdependent

Answer 11

When organisms in an area need each other for resources

Question 12

Quadrat

Answer 12

A square frame of known area that is placed on the ground to get a sample of the organisms living in a small area

Question 13

Resources

Answer 13

Something and organism needs to stay alive

Question 14

Sample

Answer 14

A small portion of an area or population

Question 15

Adaptation

Answer 15

The features of an organism that enable it to do a certain function

Question 16

Belt transect

Answer 16

A line in an environment along which samples are taken to measure the effect of an abiotic factor on the distribution of organisms

Question 17

Distribution

Answer 17

The place in which a certain organism can be found in a na area

Question 18

Pollutant

Answer 18

A substance that harms living organisms when released into the environment

Question 19

Biodiversity

Answer 19

The variety of a species in an area

Question 20

Compete

Answer 20

When organisms interact to get a limited resource that they need

Question 21

Competition

Answer 21

When organisms need the same resource as each other so struggle against each other to get them.

Question 22

Predation

Answer 22

When one animal species kills and eats another animal species

Question 23

Predator prey cycle

Answer 23

The regular variation in numbers of predators and number of prey within a feeding relationship.

Question 24

Host

Answer 24

An individual that can be infected by a certain pathogen

Question 25

Mutualism

Answer 25

A relationship between individuals of different species where both individuals benefit

Question 26

Parasite

Answer 26

An organism that lives in or on a host and takes food from it whilst it’s alive

Question 27

Parasitism

Answer 27

A feeding relationship in which a parasite benefits and the host is harmed

Question 28

Eutrophication

Answer 28

The addition of more nutrients to an ecosystem than it normally has

Question 29

Fish farming

Answer 29

Growing fish in a contained area, usually to supply humans with food

Question 30

Indigenous

Answer 30

Organisms that have always been in an area

Question 31

Non-indigenous

Answer 31

Organisms that have been introduced to an area where they haven’t been before

Question 32

Overfishing

Answer 32

Taking more fish from a population than are replaced by the fish reproducing so that the population number falls each year

Question 33

Captivity

Answer 33

Keeping something in an unnatural surrounding

Question 34

Conservation

Answer 34

The protection of an area or species to prevent damages

Question 35

Endangered

Answer 35

An area or species that is in great rick of destruction

Question 36

Reforestation

Answer 36

Planting new forests where old trees have been cut down

Question 37

Desalination

Answer 37

A process that produces fresh drinking water by separating the water from the salts in salty water

Question 38

Distillation

Answer 38

The process of separating a liquid from a mixture by evaporating a liquid and then condensing it

Question 39

Potable

Answer 39

Suitable for drinking

Question 40

Water cycle

Answer 40

A sequence of processes by which water removes through abiotic and biotic parts of an ecosystem

Question 41

Biomass

Answer 41

The total mass in living organisms, usually shown as the mass after drying

Question 42

Carbon cycle

Answer 42

A sequence of process which by carbon moves from the atmosphere, through living and dead organisms, and into sediments and unto the atmosphere again

Question 43

Decay

Answer 43

A process in which complex substances in dead plant and animal biomass is broken down by decomposes into simple substances

Question 44

Decomposer

Answer 44

An organism that feeds on dead material, causing decay

Question 45

Fossil fuel

Answer 45

A fuel formed from the dead remains of animals over millions of years

Question 46

Crop rotation

Answer 46

Where a different crop is planted in the same field each year over a 3- or 4- years which helps control the build up of soil pests for each crop

Question 47

Nitrogen cycle

Answer 47

A sequence of processes by which nitrogen moves from the atmosphere through living and dead organisms, into the soil and back to the atmosphere

Question 48

Nitrogen-fixing bacteria

Answer 48

Bacteria that can take nitrogen from the atmosphere and convert it into more complex nitrogen compounds such as ammonia