(a) Identify the organism in the following figure.(b) Label the parts numbers 1 to 4.(c) Name the phylum in which notochord is present.(d) Name the subphylum in which notochord is present throughout life."

(a) The organism present in the figure is Amphioxus (Scientific name: Branchiostoma).

(b) Name of the different parts are:

(1.) Nerve Cord (2.) Notochord (3.) Atriopore (4.) Oral hood

(c) The name of the phylum in which animals have notochord is known as Chordata.

(d) The name of the subphylum in which notochord is present in the animals throughout their life is known as Cephalochordate.

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Updated on: 10-Oct-2022

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