BIOLOGY CH23 Economic Biology — Science STD 9 — Question

The shape of Vibrio cholerae is

Which of the following has the highest refractive index

______ is the method of growing plants without soil.

All the factors of biosphere which affect the ability of organisms to survive and reproduce are called as  ______.

Chlorophyll in a leaf is required for ……………………

………………..cable helps to establish internet connectivity.

Units named after scientists …………………..

The tissue composed of living thin walled polyhedral cell is ______.

……………..compounds are highly brittle.

Sunflowers open the petals in bright light during the day time but close the petals in dark at night. This response of sunflowers is called ……………………