Key words

Question 1

Organism

Answer 1

any living thing, plant or animal

Question 2

Abiotic Factors

Answer 2

non-living components of the environment such as temperature.

Question 3

Biotic Factors

Answer 3

the effect of other living organisms on each other in an ecosystem.
Competition from other organisms for food.

Question 4

Population

Answer 4

a group of individuals of the same species living in the same area that interact and interbreed with each other. Eg. Frogs in a pond. Beech trees in a wood.

Question 5

Habitat

Answer 5

the place where and organism lives

Question 6

Community

Answer 6

all the populations of different species living in the same area.

Question 7

Ecosystem

Answer 7

a community of organisms in a specific climate such as an artic ecosystem.

Question 7

Biosphere

Answer 7

the part of the earth where living things are found.

Question 8

Niche

Answer 8

a species niche is its functional role in the community. Each species in a community has a unique niche. A rabbit is food for foxes and eats grass.

Question 9

A Pyramid of Numbers

Answer 9

s a bar chart showing the number of individuals at each trophic level of a food chain

Question 10

A food web

Answer 10

is a flow chart showing the feeding connections in a community

Question 10

Trophic Level

Answer 10

the position of a species in a food chain.

Question 11

Producer (Autotroph)

Answer 11

makes its own food from inorganic materials.

Question 12

Consumer (Heterotroph)

Answer 12

cannot make food - uses ‘ready-made’ food.

Question 12

Carnivore

Answer 12

flesh eating animal e.g. fox, hawk, ladybird.

Question 13

Herbivore

Answer 13

plant eating animal e.g. rabbit, honey bee, green fly.

Question 13

Photosynthesis

Answer 13

the way in which green plants make their food.

Question 14

Omnivore

Answer 14

plant and flesh eating animal e.g. hedge hog, field mouse.

Question 15

Decomposer

Answer 15

detritus feeder e.g. earthworm, most bacteria and fungi.

Question 16

Symbiosis

Answer 16

is the relationship between individuals of two or mores species living together.

Question 17

Parasitism

Answer 17

symbiosis where one species feeds off and harms the other. Example: lice on hawks.

Question 18

Mutualism

Answer 18

symbiosis where all species gain. Example: lichens - the fungus gains food from the algae and the algae gain shelter, water plus mineral nutrients from the fungus.