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WorksheetsLife on Earth key Terms
Total questions: 20
Worksheet time: 11mins
"A group of organisms which can interbreed to produce fertile offspring" is the definition for:
Niche
Species
Habitat
Carnivore
What is intraspecific competition?
Competition between members of the same species
Competition between members of different species
Which of the following is an example of an abiotic factor?
predation
grazing
temperature
disease
Which of the following are chemical mutagenic agents?
UV rays
X-rays
cigarette smoke
mustard gas
What is the third main stage of speciation?
natural selection
Time
mutation
isolation
Which are alternatives to pesticide use?
mutation
biological control
kills pests
GM crops
What is a random change in an organisms genetic material called?
natural selection
mutation
adaptations
biological control
What are the two main categories of mutagenic agents?
chemical
radiation
advantageous
disadvantageous
Give an example of an isolation barrier
mutation
geographical
tropical
reproductive
Which technique would you use to sample small, slow-moving invertebrates and plants?
Pitfall trap
Light meter
Moisture meter
Quadrat
Which word means the build up of toxic substances in a living organisms
Accumulate
DDT
Toxicity
Bio-accumulation
What percentage of energy is used for the growth of an organisms
90%
10%
Name the form of nitrogen plants can absorb through their leaves
Nitrogen
Nitrate
Nitrite
They can't absorb it through their leaves
What do farmers add to their soil to increase nitrate concentrations?
Nitrogen
Fertilisers
Pesticides
Fungicides
What things do animals compete for?
Light
Space
Food
Mates
Select 2 abiotic factors
predation
disease
light intensity
pH
