Lab Test 1 Flashcards
1
Q
what is a dichotomous key ?
A
A key used to rapidly identify a limited number of organism.
2
Q
How do you design a dichotomous key?
A
Always consider two possibilities at one time.
Two forms:
- flow chart
-a sequence of descriptive statements
Key points
- simple and observable characteristic
- feature assessed yes or no; providing the possibility to split a group in two
3
Q
Why dichotomous keys ?
A
The idea is to identify an organism without having to cut it open and observing its internal components.
