The most important gas for living things is ---

What part of a seed grow below the soil?

Hypogeal germination occurs in plants like --

The part of an insect body used for flight is the ---

Example of a Learned behaviour is -

The plumule grows out of a seed to form ---

Example of involuntary action is --

What percentage of animals are insects?

How many percent of air is made of nitrogen?

Where in a vehicle is air mostly useful?

Which of these are called friends of farmers-

One of these are behaviour that occur naturally