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61.

Nucleic acid is absent in

62.

Which part of an animal virus is not reproduced in multiple copies?

63.

Entamoeba histolytica differs from Amoeba in absence of

64.

Most primitive member, in which roots are not present, is

65.

The process which cannot take place in the absence of viruses is

66.

In Whittaker's system of classification, prokaryotes belong to the kingdom

67.

Thigmotaxis is not shown by

Aurelia

Polyp and medusa are the asexual and sexual phases present respectively in coleoptiles.

Aurelia (jelly fish) belongs to Class- Scyphozoa, in which medusoid phase is dominant and polypoid phase is absent.

Hydra, Obelia, Physalia are the members of Class- Hydrozoa, in which, medusoid and polypoid both phases are present.

Metridium, Tubiporia etc are the members of Class- Anthozoa, with only polyps.

69.

Contractile vacuole in protozoan Amoeba is meant for

70.

Edible part of mushroom is