NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM ANIMALS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A scientist has encountered a new organism in the kingdom Animalia with the following characteristics:jointed legs, exoskeleton, segmented body, and bilateral symmetry. What is it?
A
Annelida
B
Arthropoda
C
Cnidaria
D
Mollusca
Explanation: 

Detailed explanation-1: -Identification of Insects and their Relatives: Insects are part of the phylum of animals called Arthropoda. All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages.

Detailed explanation-2: -What feature(s) make arthropods ecdysozoan protostome bilaterian animals? Arthropods are ecdysozoans in that they have an outer, non-cellular cuticle layer that is shed.

Detailed explanation-3: -One character inherited by all arthropods is bilateral symmetry.

Detailed explanation-4: -Characteristic features of Phylum Arthropoda The body structure shows bilateral symmetry. They are triploblastic. They can be found in all types of habitats – land, water and soil. They have jointed limbs.

Detailed explanation-5: -Arthropods are bilaterally symmetrical and segmented. They have jointed legs/appendages (the word ‘arthropod’ means ‘jointed legs’). Some familiar examples are prawns, butterflies, houseflies, spiders, scorpions and crabs.

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