sem 3- unit 1

Which of the following is not a chordate character?

• Paired gill-slits

• Notochord

• Nerve cord

• Diverticulated intestine

Amphioxus belongs to

• Cephalochordata

• Hemichordata

• Agnatha

• Pisces

In Herdmania, pharynx plays the role of

• Food collection

• Chewing of food

• Digestion of food

• Absorption of food

Herdmania shows

• Progressive metamorphosis

• Retrogressive metamorphosis

• Induced metamorphosis

• None of the above

How many gill-slits are present in Petromyzon

• 1

• 2

• 6

• 7

Buccal tentacles

• Collect food

• filter food

• nothing to do with food

• chew food

Dorsal languets are present in

• Herdmania

• Amphioxus

• Petromyzon

• Myxine

Which of the following is included in Urochordata?

• Herdmania

• Amphioxus

• Fish

• Hagfish

Filter feeding mechanism is present in

• Amphioxus

• fish

• Myxine

• Frog

Salpa belongs to

• Ascidiacea

• Thaliacea

• Agnatha

• Chordata