Канал: BIOLOGY NCERT CLASS-12.

Why does cactus have so many thorns?

Why does cactus have so many thorns?

How does the chick recognise her own mother?

How does the chick recognise her own mother?

How does the bird sing? Why does the bird sing?

How does the bird sing? Why does the bird sing?

How does the bee know which flower has a nectar?

How does the bee know which flower has a nectar?

Why are night blooming flowers generally white?

Why are night blooming flowers generally white?

Ecology# Definition.

Ecology# Definition.

Chapter-13. # Organisms and population.

Chapter-13. # Organisms and population.

Various levels of biological organisation.

Various levels of biological organisation.

Reproduction# Why is reproduction essential?

Reproduction# Why is reproduction essential?

Reproduction# Definition# Types.

Reproduction# Definition# Types.

Life span of Elephant, Rose, Dog, Butterfly,Crow,Cow,Parrot,Horse, Crocodile,Rice plant,Tortoise etc

Life span of Elephant, Rose, Dog, Butterfly,Crow,Cow,Parrot,Horse, Crocodile,Rice plant,Tortoise etc

Life span.

Life span.

Chapter-16. Environmental issues.

Chapter-16. Environmental issues.

Chapter-15. Biodiversity and conservation.

Chapter-15. Biodiversity and conservation.

Chapter-14. Ecosystem.

Chapter-14. Ecosystem.

Chapter-13. Organisms and population.

Chapter-13. Organisms and population.

Chapter-12. Biotechnology; it's applications.

Chapter-12. Biotechnology; it's applications.

Chapter-11. Biotechnology ; Principles and Processes.

Chapter-11. Biotechnology ; Principles and Processes.

Chapter-10. Microbes in human welfare. A typical biogas plant.

Chapter-10. Microbes in human welfare. A typical biogas plant.

Chapter-8. Human health and disease.

Chapter-8. Human health and disease.

Chapter-7. Evolution of man. Miller's experiment.

Chapter-7. Evolution of man. Miller's experiment.

Chapter-6. Molecular basis of inheritance # imp concepts,diagrams and experiments.

Chapter-6. Molecular basis of inheritance # imp concepts,diagrams and experiments.

Chapter-4. Reproductive health # contraceptives / birth control methods.

Chapter-4. Reproductive health # contraceptives / birth control methods.

Chapter-3. Human reproduction.

Chapter-3. Human reproduction.

Chapter-2. Sexual reproduction in flowering plants.

Chapter-2. Sexual reproduction in flowering plants.

Chapter-1. Reproduction in organisms.

Chapter-1. Reproduction in organisms.

Structure of DNA double helix.

Structure of DNA double helix.

Structure of Sperm.

Structure of Sperm.

Seminiferous tubule.

Seminiferous tubule.

Human female reproductive system.

Human female reproductive system.

Human Male reproductive system.

Human Male reproductive system.

Ultrastructure of Eukaryotic cell

Ultrastructure of Eukaryotic cell

Germination of pollen grain on stigma & pollen tube growth through style.

Germination of pollen grain on stigma & pollen tube growth through style.

2N,4N,8N stage & Mature Embryo sac.

2N,4N,8N stage & Mature Embryo sac.

Megaspore mother cell,a diad & a tetrad of megaspore.

Megaspore mother cell,a diad & a tetrad of megaspore.

A Typical anatropous ovule.

A Typical anatropous ovule.

T.S of a young anther & mature anther.

T.S of a young anther & mature anther.

Structure of pollen grain.

Structure of pollen grain.

T.S of a young anther.

T.S of a young anther.

L.S of a typical flower.Ex- 🌺 scientific name- Hibiscus rosa-sinensis.

L.S of a typical flower.Ex- 🌺 scientific name- Hibiscus rosa-sinensis.

Budding in Yeast

Budding in Yeast