1. HW: Dichotomous Key (if incomplete)
Monday
May 15, 2017
I can:
use a dichotomous key to identify an organism
Agenda
(10) Catalyst
(10) GN: Dichotomous Keys
(15) Emoji Dichotomous Key (together)
(45) Arachnid Dichotomous Key OR DIY Dichotomous Key (pairs)
(5) Exit Ticket
Catalyst
How has classification changed over time? Answer the following:
What was Aristotle’s contribution to classification?
How did Linnaeus classify organisms?
What do we know now due to modern technology that we did not in either man’s time?
HW: Dichotomous Key (if incomplete)

3. Dichotomous Keys
Dichotomous Keys: allow people to identify different species. They are created by scientists to allow other people to identify species.

4. Dichotomous Keys
Dichotomous: Di = 2 chotomous = splitting Dichotomous keys always give you 2 choices at each step.

5. Dichotomous Keys Rules: ALWAYS start at number 1 on a dichotomous key.
Pick which choice is true for the organism
When you reach a name, you have identified the species