Question

Write the characteristics of Enterocoela and phylum Arthropoda.

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Answer 1

Arthropods are joint-legged animals and you must have come across a few of these animals. Some prominent ones include insects, spiders, ants, bees, crabs, shrimps, millipedes, centipedes etc. Scientifically speaking, they all come under the Animal Kingdom under phylum Arthropoda.

The success of the arthropods can mainly be attributed to the presence of exoskeleton, which makes them versatile, is protective in nature and also allows flexibility and mobility. You can see arthropods living on land and in water. They are also a source of food for many animals and human beings too!

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Answer 2

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$\huge\mathcal\pink{Enterocoela:}$

⏭ Coelom is enterocoelic type, as it develops from endoderm as pouches.

⏭ Radial and intermediate type of cleavage is seen.

⏭ Anus develops from blastopore.

⏭ Skeleyon develops from mesoderm.

⏭ Larva is Pluteus type.

⏭ It is described as Echinoderm superphylum in some texts.

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$\huge\mathcal\pink{Phylum\:Arthropoda:}$

⏭ A thick, chitinous cuticle covers the body as exoskeleton.

⏭ Lateral jointed appendages are present.

⏭ Body cavity is haemocoel type.

⏭ Circulatory system is open type, with many chambered heart

⏭ Excretion occurs through malphigian tubules or green gland or thorax.

⏭ The body is divided into head, thorax and abdomen.