a)Construct a dichotomous key to key out the following organisms using the following steps Step 1: Body covering Step 2: Animal with 3pairs of walking limbs or...

      

a)Construct a dichotomous key to key out the following organisms using the following steps
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Step 1: Body covering
Step 2: Animal with 3pairs of walking limbs or more
Step 3: Animals with four pairs of legs
Step 4 : Number of walking limbs per segment.
b) With reasons state the class to which the organisms belong.
i) S. gregaria
ii) S. coleopata

  

Answers


sharon
1. a) Body covered with exoskeleton . . . . . . . . . . . . . . . . . . . . . go to 2
b) Body covered with feathers . . . . . . . . . . . . . . . . . . . . . . . . . P. velatus
2. a) Animal with wings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S. gregaria
b) Animals without wings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . go to 3
3. a) Animals with 4 pairs of legs . . . . . . . . . . . . . . . . . . . . . . . . . C. Sapidus
b) Animal with 4 more than 4 pair of legs . . . . . . . . . . . . . . . . . go to 4
4. a) Animals with 2 pairs of legs per segment . . . . . . . . . . . . . . . S . gifan
b) Animals with 1 pair of legs per segment . . . . . . . . . . . . . . . . S. Coleopata

b) i) Class - insecta
Reason - 3 body parts
3 pairs of walking limbs
ii) Class - chilopoda 1
Reasons - 1 pair of legs per segment
- 1 pair of antennea
- 2 body parts (head and trunk)
- Body dorsal - ventrally flattened
sharon kalunda answered the question on May 28, 2019 at 13:09


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