Explain adiabatic wall and diathermic wall.

Classify and explain the characteristics of wall lizard.

A ladder 10 meter long is leaning against a vertical wall. If the bottom of the ladder is pulled horizontally away from the wall at the rate of 1.2 meters per second, find how fast the top of the ladder is sliding down the wall when the bottom is 6 meters away from the wall.

Describe plant cell wall with well labelled diagram.

One of the following generally absent in bacterial cell wall

Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called.

Plant cell do not burst in distilled water because the cell wall is................

Explain the structure of plant cell wall.

Explain the role of tapetum in the formation pollen grain wall.