NCERT Solutions for Chapter: Organisms and Populations, Exercise 1: MULTIPLE-CHOICE QUESTIONS

What parameters are used for tiger census in our country's national parks and sanctuaries?

Which of the following would necessarily decrease the density of a population in a given habitat?

A protozoan reproduces by binary fission. What will be the number of protozoans in its population after six generations?

In $2005$, for each of the $14$ million people present in a country, $0.028$ were born and $0.008$ died during the year. Using the exponential equation, the number of people present in $2015$ is predicted as

Amensalism is an association between two species where

Lichens are the associations of

Which of the following is a partial root parasite?

Which one of the following organisms reproduces sexually only once in its lifetime?