13 – To Identify Organisms in an Ecosystem (LC 2027) (Leaving Cert Biology): Flashcards
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Practise the cards
14 cards from this deck
Organism identification definition
Organism identification definition
Working out what species live in a particular habitat
Most reliable organism identification method
Most reliable organism identification method
Expert consultation with qualified biologist/ecologist
What is an identification key?
What is an identification key?
Systematic method using questions with alternative answers
Dichotomous key characteristic
Dichotomous key characteristic
Each question has only two possible answers
Number of legs insects have
Number of legs insects have
6 legs
Number of legs arachnids have
Number of legs arachnids have
8 legs
Insect wing presence
Insect wing presence
Usually have wings
Arachnid wing presence
Arachnid wing presence
No wings
Centipede legs per body segment
Centipede legs per body segment
One pair per segment
Millipede legs per body segment
Millipede legs per body segment
Two pairs per segment
Meaning of 'dichotomous'
Meaning of 'dichotomous'
Divided into two parts
5 examples of insects
5 examples of insects
Flies, beetles, ants, bees, butterflies
Examples of arachnids
Examples of arachnids
Spiders, harvestmen (daddy-long-legs)
Centipede behaviour
Centipede behaviour
Fast-moving predators