question_answer 21)

  Which one of the following sets of animals belong to a single taxonomic group? (a) Cuttlefish, jellyfish, silverfish, dogfish, starfish (b) bat, pigeon, butterfly (c) Monkey, chimpanzee, man (d) Silkworm, tapeworm, earthworm

Answer:

                  (c) Monkey, chimpanzee and man belong to a single taxonomic group, i.e., mammals because all of them possess the following characters. (i) Milk producing mammary glands. (ii) Two pairs of limbs. (iii) Presence of external ears. (iv) Viviparity. (v) Skin possessing hair. Whereas,

Animal Group	Taxonomic Group
Cuttle fish Jellyfish Silver fish Dog fish Starfish	Phylum-Mollusca, Class-Cephalopoda, Phylum-Cnidaria Class-lnsecta, Order-Thysanura, Phylum-Arthropoda, Phylum-Chordata, Class-Chondrithyes, Phylum-Echinodermata,Class-Asteroidea,

 

Animal Group	Taxonomic Group
Bat Pigeon Butterfly	Phylum-Chordata, Class-Mammalia Phylum-Chordata, Class Aves Phylum-Arthropoda, Class-lnsecta, Order-Lepidoptera

 

Animal Group	Taxonomk Group
Silkworm Tapeworm Earthworm	Phylum-Arthropoda, Class-lnsecta, Order-Lepidoptera Phylum-Platyhelminthes, Class-Cestoda Phylum-Annelida,Class-01igochaeta