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.
- Individual
- Population
- Community
- 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:
- Death rate and birth rate.
- Sex ratio
- Population density
- Age distribution
Q4: Name some of the recently extinct species in India.
Answer:
Some of the extinct species are:
- Tusked Elephant
- Megalochelhys Atlas
- Stegodon
- Sivatherium
Organism and Population Notes Class 12 Biology Chapter 11
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.