How are unknown organisms identified? – 2 1. What information needs to be collected before an organism can be identified?
2. How does a dichotomous key work?
Teac he r
Write a brief description of each tree based on the information in the dichotomous key.
ew i ev Pr
3. (a)
r o e t s Bo r e p ok u S
(i) Oak
(ii) Hawthorn (iii) Birch
(iv) Walnut
© R. I . C.Publ i cat i ons What are the similarities and differences between a sugar maple and a red maple? •f orr evi ew pur posesonl y• (v) Elder
(b)
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4. Show the dichotomous key as a flow diagram.
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m . u
Biological sciences
Use the text on page 23 to complete the following.
o c . che e r o t r s super
In what industries do you think it might be important to identify different plant and animal species? Give reasons for your suggestions. AUSTRALIAN CURRICULUM SCIENCE
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