10 Questions
What is the period between an organism's birth and natural death called?
Lifespan
What is the main function of reproduction in organisms?
Enables continuity of the species
In which type of reproduction are the offspring genetically and morphologically identical to their parent?
Asexual reproduction
What does the lifespan of an organism depend on?
Internal physiology and habitat
In which type of asexual reproduction does the parent body divide into many daughter organisms?
Fragmentation
Which type of binary fission occurs along the longitudinal axis of the individual?
Longitudinal binary fission
What is the complex budded condition called in budding (torulation)?
Torala stage
What type of asexual reproduction involves the formation of new plants from vegetative parts like root, stem, leaf, etc.?
Vegetative propagation
Which type of asexual reproduction involves the repair of the missing part of the organism by the proliferation of cells?
Regeneration
What happens in multiple fission?
The parent body divides into many daughter organisms
Study Notes
Life Cycle and Reproduction
- The period between an organism's birth and natural death is called its lifespan.
Reproduction
- The main function of reproduction in organisms is to produce offspring.
- Reproduction allows the continuation of a species.
Types of Reproduction
- Asexual reproduction results in offspring that are genetically and morphologically identical to their parent.
- Binary fission is a type of asexual reproduction that occurs along the longitudinal axis of the individual.
Asexual Reproduction Methods
- Fragmentation is a type of asexual reproduction where the parent body divides into many daughter organisms.
- Budding involves the formation of a new individual from a bud, and in some cases, leads to a complex budded condition called torulation.
- Vegetative propagation is a type of asexual reproduction that involves the formation of new plants from vegetative parts like root, stem, leaf, etc.
- Regeneration is a type of asexual reproduction that involves the repair of the missing part of the organism by the proliferation of cells.
- Multiple fission is a type of asexual reproduction where a single parent cell divides into many daughter cells simultaneously.
Access CBSE NCERT solutions and comprehensive notes for Class 12 Biology on the topic of Reproduction in Organisms. Learn about the lifespan of organisms and various biological concepts related to reproduction. Enhance your understanding of this topic with detailed explanations and solutions.
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