Question

Match the columns and choose the correct combination.

A	Polychaeta	p	Scorpion
B	Trematoda	q	Pila
C	Arachnida	r	Liver Fluke
D	Gastropoda	s	Nereis
		t	Star Fish

• A. A- s, B- r, C- p, D- q
• B. A- q, B- s, C- t, D- p
• C. A- r, B- s, C- p, D- t
• D. A- t, B- q, C- s, D- r

Answer 1

The correct option is A A- s, B- r, C- p, D- q

Nereis is a one of the genus of polychaete worms which belongs to the family Nereidae. They include the worms which have a marine habitat. The body of this worms have setae and parapodia which are used for the purpose of locomotion.
Trematoda is the class of the liver fluke. This group commonly includes the liver flukes. They are parasitic in nature. They cause infection in humans and other mammals.
Arachnida is a group of joint-legged invertebrate animals. These includes scorpions, spiders, acari, etc. They have four pair of legs which are jointed segments. They do not have antennae or wings.

Pila is a genus of freshwater snails. They are also called as aquatic gastropod molluscs. They have gills for breathing and operculum to seal the entrance of shell.

Thus, the correct answer is option A.