Question

Write about 3) Charecters of Arthropoda and Mollusca​

Answer 1

Answer:

Both arthropods and molluscs show bilateral symmetry, which means that their bodies are divided into two equal halves. Arthropods are animals having a segmented body with paired appendages or legs. Molluscs are animals having soft bodies usually covered in mucus. The arthropods have exoskeleton covers on their body.

Explanation:

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Answer 2

Arthropoda and Mollusca​ belongs to animal kingdom.

Explanation:

A) ARTHROPODA

• Arthropods are animals that live in the invertebrate kingdom.

• Their limbs are jointed, and their cuticle is formed of chitin, which is often mineralised with calcium carbonate.

• The body plan of an arthropod is made up of segments, each containing a pair of appendages. Arthropods have a body with an exterior skeleton that is bilaterally symmetrical.

B) MOLLUSCA

• After the Arthropoda, Mollusca is the second-largest phylum of invertebrate animals.
• They are symmetrical on both sides.
• They have three layers and are triploblastic.
• They display the organ system's level of organisation.
• The body is unsegmented and soft.
• The head, a visceral mass, and the ventral foot are the three parts of the body.
• A mantle and shell cover the body.