Approximately $.........$ plant species are used by indigenous people around the world in traditional medicines. (in $,000$)

According to the Rivet Popper Hypothesis,the airplane represents:

Humans benefit from the diversity of life. Give two examples.

Write an explanatory note on Biodiversity.

Identify the incorrect statement from the following.

Which of the following hypotheses suggests that ecosystems are like aeroplane wings, where the flight (ecosystem functioning) may or may not be compromised depending upon which species are being lost?