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Refer to the guide provided for aid of using the dichotomous key.
Smooth edge Leaflet
Leaves alternate
to each other Simple leaf Compound leaf
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Toothed edge
Lobed
leaves
Needle Leaves opposite
leaves to each other
[Total: 9]
10 Fig. 10.1 shows several species of sharks.
Write the letter of each species (A to H) in the correct box beside the dichotomous key.
A B
C D
E F
G H
Fig. 10.1
Cambridge IGCSE
TM
10 Ace Your Biology
Chapter 1.indd 10 30/03/2022 3:07 PM
