Biology Revision Notes For Class 12 Chapter 1 Reproduction In Organism

Reproduction is the most crucial aspect if a species wants to continue its lineage. And over the course of billions of years of evolution, there are 2 ways that have emerged for organisms to reproduce – asexual and sexual reproduction. The very first organisms probably reproduced asexually.

Organisms such as the single-celled amoeba reproduce by binary fission, and more complex, multicellular organisms such as bears and wolverines reproduce by sexual reproduction. Discover more about this process, the intricates, advantages, disadvantages and the mechanisms by exploring our PDF, Chapter 1 – Reproduction in Organism. Furthermore, this content is crafted to enable easy reading and comprehension.

Revision notes for Biology class 12 Chapter 1

Biology Class 12 Chapter 1
Biology Class 12 Chapter 1
Biology Class 12 Chapter 1
Biology Class 12 Chapter 1
Biology Class 12 Chapter 1
Biology Class 12 Chapter 1

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Practise This Question

Consider the following terms/phrases:

             1. Change in chromosome number

             2. Geographical isolation

             3. Competition for food

             4. Reproductive isolation

Which of these factors are responsible for speciation?