A) Spider
B) Scorpion
C) Centipede
D) Crab
Correct Answer: D
Solution :
Crab (Cancer) belongs tb phylum-Arthropoda and class- -Crustacea. They are true crabs and mostly marine and their body is quite large, dorso-ventrally flattened and squarish in shape. The number of segments is originally ax in head,_eight in thorax and six in abdomen. The last five pairs of thoracic appendages are long walking legs and being adapted for capturing preys. They are non-poisonous.
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