Question

Consider following features :
(a) Organ system level of organisation
(b) Bilateral symmetry
(c) True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.
(1) Annelida, Arthropoda and Chordata
(2) Annelida, Arthropoda and Mollusca
(3) Arthropoda, Mollusca and Chordata
(4) Annelida, Mollusca and Chordata

Answer 1

Option (a)

Annelida

Arthropoda and

Chordata

Answer 2

Annelida, Arthropoda and Chordata  following features .

(a) Organ system level of organisation

(b) Bilateral symmetry

(c) True coelomates with segmentation of body

Step by step explanation:

Annelida -

Body is divided into segments that are separated by septa.

Some body segments may carry one or more pairs of eyes.

Arthropoda-

Segments can be fused into three main body parts - Head, Thorax and abdomen.

The head has mouth parts, eyes and often antennae.

Chordata

All have bilateral symmetry.

Contains invertebrate and vertebrate species.

Hence, correct answer -1