Class XI

Egg of reptiles and birds are
  1. Alecithal
  2. Telolecithal
  3. Mesolecithal
  4. Polylecithal
What is common among Liver fluke, Planarians and Tape worm?
  1. All of them are segmented.
  2. All of them are found in gut.
  3. All of them have flattened bodies.
  4. All of them have a coelom.
Which two teeth are modified into tusk in elephants?
  1. Two lower molar
  2. Two upper molar
  3. Two upper incisors
  4. Two lower incisors
The life-span of honey bee drone is
  1. 3-4 months
  2. 6-7 months
  3. 10-12 months
  4. 1-2 months
The phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry is
  1. Phylum Aschelminthes
  2. Phylum Arthropoda
  3. Phylum Echinodermata
  4. Phylum Annelida
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