General Characters and classification of Echinodermata.

1. There are 7,000 sps known in Echinodermata.
2. This phylum was introduced Klein in 17...}
   Akshamala

Larval form in Echinodermata.

1. Larval forms of Echinodermata.
2. Study of different classes of Echinodermata.
<...}
Akshamala

Habit Habitat and external feature of Asterias.

1. Genus Asterias includes about 1, 5000 species of which most common is A.rubens.
   Akshamala

Water Vascular or Ambulacral System of Asterias.

1. Study of the water vascular system of sea star.
2. Description of six parts of water...}
   Akshamala

Digestive system of asterias.

• Study of the digestive system of sea-star.
• Study of the alimentary canal of sea-st...}
  Akshamala

Life cycle and development of Asterias.

1. A life cycle of Asterias.
2. Larval development of Asterias. related to bipinnaria an...}
   Akshamala

Circulatory system of Asterias.

• Study of the circulatory system of Asterias.
• Study of the haema...}
  Akshamala

Respiratory system and Nervous system of Asterias.

• According to the Mayer (1935), in Asterias rubens, with covered ambulacral grooves.
Akshamala

Excretory system and Reproductive system of Asterias.

1. Study of  excretory system of Asterias.
2. Study of respiratory the  s...}
   Akshamala