Among the plants listed,point out one that does not fit into the ecological group represented by the other plants.

Which of the following pairs is $NOT$ correctly matched?

When an organism moves away temporarily from a stressful habitat to a more hospitable area and returns when the stressful period is over,what is this process called?

Below is the diagrammatic representation of the response of organisms against temperature. Find out the correct match.

$A$ population characteristic of a species susceptible to extinction is

The Netherlands is a small country,yet it has a high population density. What is the most likely reason for this?