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46 Cards in this Set

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  • Back
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How organisms change in order to become more suited to their environment
Organisms suited environment
The build up of toxic substances in a food chain or the body of an organism
Build up toxic food chain
Biological control
Natural methods used to prevent pest damage to crops
Natural prevent damage crops
The mass of an organism when all of the water has been removed from their tissues
Mass water removed tissues
Mating organisms in order to produce an increase in population size
Mating increase population
A feature of an organism which can either be inherited or modified by the environment
Feature inherited modified
A systematic way of grouping things
Systematic grouping
Where two organisms both want the same thing such as food, space or light
Organisms want the same thing such as ...
Computer model
Uses mathematical formulae to work out what might happen if certain changes are made
Mathematical what might happen if changes
Trying to maintain habitats and prevent the loss of species
Maintain prevent
Clearing trees for timber or to make space for grazing animals, raising crops or putting up buildings
Clearing for space
Turning land into desert
It happens because animals have been allowed to graze the land until it is bare
A group of plants and animals which live and interact together
Group live and interact
The place where an organism lives
It is made up of many different factors such as air, water, soil and other living things
The gradual change in the characteristics of a species over many generations
Gradual characteristics species generations
When a group of organisms die out because it cannot adapt itself to a new situation
Organisms die cannot adapt situation
Factory farming
Intensive farming which depends on artificial fertilisers and chemical pesticides
Intensive fertilisers pesticides
Food chain
A chain to show how energy moves between animals and plants
Chain energy animals plants
Food web
A group of interlinked food chains
Interlinked chains
An imprint in the rock left by the body of an organism which lived millions of years ago
Imprint body millions of years ago
Genetic engineering
Transferring genes from one organism to another, or changing genes in an organism by altering their DNA
Transferring one organism to another or changing genes DNA
Genetically modified
An organism that has had its characteristics modified by the use of genetic engineering
Characteristics modified GE
When a change to one organism brings about a change in another
Change to one brings change in another
Between two different species
Between members of the same species
A major category of classification, including animals, plants, fungi, bacteria and protoctista
Major classification
Natural selection
How environmental factors such as disease or predation alter the characteristics of a species
Environmental factors alter characteristics
Organic (when applied to food)
Food produced without artificial fertilisers, pesticides and herbicides
Without fertilisers, pesticides and herbicides
Organic farming
Labour-intensive farming which uses natural methods to control pests and maintain soil fertility
Labour-intensive natural methods control pests maintain soil
Any living thing
The total number of one species of an organism living in an area
Number of one species of an organism in area
An animal which hunts and kills other animals, such as a lion
Hunts and kills other animals
An animal which is hunted and killed by a predator, such as a zebra
Hunted and killed by other animals
The order to which humans and apes belong
Common ancestry order humans and apes
Organisms which make their own food by photosynthesis, such as a green plant
Make food photosynthesis
The kingdom to which all single-celled organisms, such as the euglena, belong
Kingdom single-celled euglena
Pyramid of biomass
A diagram which shows how much living material is found at each link in the food chain
Living material each link
Pyramid of number
A diagram which shows the number of living organisms at each link in the food chain
Number each link
A square frame which is placed on the ground to get a sample of the organisms living in a small area
Square frame sample organisms in small area
Using numbers to describe something
Numbers describe
Propagation of a species.The process of producing the next generation of individuals
Propagation process of next generation individuals
An animal which feeds on dead remains or food left by another animal, such as a hyena
Dead remains or food left by another animal
Sedimentary rock
A rock formed when particles settle together and become compressed to form layers, such as limestone, shale and sandstone
Particles settle compressed layers
Selective breeding
Deliberately mating together organisms to produce a plant or animal which has a useful combination of characteristics
Deliberately mating produce plant or animal useful combination
A population of organisms which breed together and produce fertile young. The name given to the finest level of grouping in classification. Several species make up a genus
Breed together produce fertile young. Finest level of grouping. Several species genus.
Sustainable development
Using methods which do not use up limited resources and so do no harm to the environment. For example, replanting trees to replace ones which are cut down
Do not use up limited resources no harm replanting trees