Organism and Population

Q1: What are the Levels of Biological Organization in the Ecosystem?

Answer:

There are four levels of biological organization in the ecosystem.

1. Individual
2. Population
3. Community
4. Ecosystem

Q2: Define Population.

Answer:

A group of individuals of the same species living and interbreeding within a given area for the continuation of the species.

Q3: What are the attributes of the population?

Answer:

Attributes of the population are:

1. Death rate and birth rate.
2. Sex ratio
3. Population density
4. Age distribution

Q4: Name some of the recently extinct species in India.

Answer:

Some of the extinct species are:

1. Tusked Elephant
2. Megalochelhys Atlas
3. Stegodon
4. Sivatherium

CBSE Class 12 Organisms and Population: The study of organisms and populations is an important area of biology known as ecology. An organism is a single living individual that is capable of carrying out all basic life processes. Organisms can be unicellular, or multicellular. Whereas population referred to a group of individuals present in a geographic area. Ecology primarily focuses on four levels of biological organization: organisms, populations, communities, and biomes. Here, in this chapter 11 of NCERT Organisms and Population, we will study the first two levels of biological organization.