EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The symmetry of one of the following is different from that of others. Which one is it?
A
Insect
B
Frog
C
Earthworm
D
Star fish
Explanation: 

Detailed explanation-1: -Starfish typically show pentameral symmetry, and they are typically similar in shape to a pentagram. Although starfish can evolve and live with other numbers of arms, the dominant species always show pentameral symmetry.

Detailed explanation-2: -Key Points Starfish belongs to the phylum Echinodermata group. Echinodermata are so named owing to their spiny skin (from the Greek “echinos” meaning “spiny” and “dermos” meaning “skin”). Echinodermata are exclusively marine organisms.

Detailed explanation-3: -For example, pies, snowflakes, and starfish are radially symmetric because they have many different lines of symmetry (dividing them into matching halves) and the lines cross one another at the center.

Detailed explanation-4: -Animals can be classified by three types of body plan symmetry: radial symmetry, bilateral symmetry, and asymmetry.

There is 1 question to complete.