ENVS4 key terms

HideShow resource information
A chemical that is used to kill pest species
Pesticide
1 of 54
Development that meets the needs of the present without compromising the needs of future generations
Sustainability
2 of 54
An organism that produces nutrients via photosynthesis
Photoautotroph
3 of 54
The sequence of organisms based on their feeding relationships
Food chain
4 of 54
The position of an organism in the food chain
Trophic level
5 of 54
An animal that eats only plant material
Herbivore
6 of 54
The stomach chamber that contains bacteria which can digest cellulose in a ruminant organism
Rumen
7 of 54
An organism that gains nutrients from other heterotrophs
Carnivore
8 of 54
An organism that eats both plants and animals
Omnivore
9 of 54
All the organisms, processes and interactions in a farming system
Agroecosystem
10 of 54
Producing offspring from specific parents to increase desirable traits or decrease undesirable traits
Selective breeding
11 of 54
The method of altering an organisms genetic code by artificially introducing genes from another organism
Genetic modification
12 of 54
A factor that can reduce the rate of reaction when in insufficient concentrations
Limiting factor
13 of 54
Living organisms
Biota
14 of 54
The loss of water from leaves as well as from other surfaces
Evapotranspiration
15 of 54
Sunlight landing on a surface
Insolation
16 of 54
The 3D shape of the land
Topography
17 of 54
The direction something faces in relation to sunlight
Aspect
18 of 54
A farmer that rents the land from the owner
Tenant farmer
19 of 54
A limit on the quantity of a substance
Quota
20 of 54
A variety of selectively bred organism where all members almost genetically identical and produce similar offspring
True breeding
21 of 54
Naturally producing genetically identical offspring from a single parent
Asexual reproduction
22 of 54
Asexual reproduction in plants
Vegetative propogation
23 of 54
An artificial form of asexual reproduction
Cloning
24 of 54
Producing offspring from two distinctly different subspecies
Crossbreeding
25 of 54
Good health achieved by breeding between distantly related breeds to reduce the chance of genetic disorders
Hybrid vigour
26 of 54
Good health achieved by breeding two distantly related organisms to reduce genetic disorders
Heterosis
27 of 54
The changes in agriculture since the mid 20th century to increase yield
Green revolution
28 of 54
Alternative name for genetic modification
Genetic engineering
29 of 54
The process of artificially transferring genetic material from one organism into another, usually another species
Transgenics
30 of 54
The transfer of genes between organisms without normal breeding taking place
Horizontal gene transfer
31 of 54
A group of plant hormones that increases cell elongation to control growth
Auxin
32 of 54
A group of plant hormones that stimulate germination and flowering
Gibberellin
33 of 54
Chemical that stimulates fruit ripening
Ethene
34 of 54
An animal hormone used to stimulate milk production
Bovine somatropin
35 of 54
A hormone used to increase gross growth efficiency in livestock
Steriods
36 of 54
A pest that is normally present
Endemic pest
37 of 54
A pest that becomes a serious problem with sporadic population increase
Epidemic pest
38 of 54
The growth of a single crop type
Monoculture
39 of 54
A substance that is absorbed and transported in plant sap
Systemic
40 of 54
Persistent insecticide group including dieldrin that is mostly banned
Organochlorines
41 of 54
A micro-organism that is carried by animals but can transfer to humans and cause disease
Zoonose
42 of 54
The practice of growing different crops in a field on a cycle
Crop rotation
43 of 54
Material added to the soil to reduce weed growth
Mulch
44 of 54
A chemical released by an organism that changes the behaviour of other organisms
Pheromone
45 of 54
The product of decomposition that builds up to help form soil
Humus
46 of 54
A plant nutrient needed in large quantities
Macronutrient
47 of 54
A plant nutrient needed in small quantities
Micronutrient
48 of 54
Agriculture where the maximum total yield is obtained by spreading production over a large area, usually with low inputs
Extensive agriculture
49 of 54
Agriculture where high yields are obtained from small areas with large inputs
Intensive agriculture
50 of 54
Cultivation where the soil is turned over
Tilling
51 of 54
A US scheme to provide food aid to Europe post WW||
Marshall plan
52 of 54
Farmland that is taken out of production but maintained for farming
Set aside
53 of 54
A scheme where farmers could get grants for farming practices that benefited the environment or improved public amenity
Countryside stewardship scheme
54 of 54

Other cards in this set

Card 2

Front

Development that meets the needs of the present without compromising the needs of future generations

Back

Sustainability

Card 3

Front

An organism that produces nutrients via photosynthesis

Back

Preview of the front of card 3

Card 4

Front

The sequence of organisms based on their feeding relationships

Back

Preview of the front of card 4

Card 5

Front

The position of an organism in the food chain

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Environmental Science/Studies resources:

See all Environmental Science/Studies resources »See all Agriculture resources »