Discuss major arthropod phyla living today

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1- what size are nematodes?

2- where is the copulatory organ of a male spider?

3- what is a common name for nematodes?

4- how many species of nematodes have been described?how many are estimated to exist?

5- how does the external covering of nematodes differ from arthropods?

6- what is the economic importance of nematodes?

7- which nematodes is a "genetic model organism"?

8- what do "arthro" and "pod" mean?

9- what are the four major arthropod phyla living today? which one contains the insects,and which the spider,and which the centipedes?

 

Reference no: EM1396258

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