Question

Give the differences between two types of symmetry that animals show.

A

(i) Bilateral symmetry : Organism having same design on left and right halves of the body are called as bilateral symmetrical.

(ii) Radial symmetry: Organisms with a body design such that it can be divided into two equal halves from any radius are known as radially symmetrical.

B

(i) Bilateral symmetry : Organisms with a body design such that it can be divided into two equal halves from any radius are known as bilateral symmetrical.

(ii) Radial symmetry: Organism having same design on left and right halves of the body are called as radially symmetrical

C

(i) Bilateral symmetry : Organism having different design on left and right halves of the body are called as bilateral symmetrical.

(ii) Radial symmetry: Organisms with a body design such that it can not be divided into two equal halves from any radius are known as radially symmetrical.

D

None of these.

Hard
Solution
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Correct option is A)

The difference between bilateral symmetry and radial symmetry are as follows:
(i) Bilateral symmetry: Organism having same design on left and right halves of the body are bilaterally symmetrical. Examples: earthworm, spider, cockroach
(ii) Radial symmetry: Organisms with a body design such that it can be divided into two equal halves from any diameter are known as radially symmetrical. Examples: starfish, sea-urchins.
So, the correct answer is 'option A'

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