Question -Which group of animals from the options below belong to the Phylum Arthropoda, based on their characteristic features like jointed appendages, exoskeleton and bi- or tri-segmented body?
Options:
A .  Sponges, corals and comb jellies
B .  Hydra, sea anemone and jellyfish
C .  Flatworm, roundworm and snail
D .  Lobster, crab and spider
Answer: Option D : D Lobster, crab and spider belong to PhylumArthropoda,with characteristic features like jointed appendages, exoskeleton, and a 2 or 3 segmented body (this refers to fused segments or tagmata such as the head, thorax and abdomen).
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