Category Biology

Common Misconceptions

Common Misconceptions Colostrum and BreastmilkColostrum is often referred to as ‘first milk’, and is produced by all mammals. It is thick and yellow in colour, typically available in the days immediately after birth. Colostrum is higher in both fat and protein…

Human Reproduction-Concept

Human Reproduction-Concept 1 Testes 1. Testes are the primary reproductive organs in the males. They are located in a pair in the scrotal sac outside the abdomen. They are endocrine in nature. 2. In the embryo stage the testis are…

Human Reproduction-Notes

Human Reproduction-Notes 1Human Male Reproductive SystemOverview on Human Male Reproductive System The male reproductive system consists of a pair of testes, accessory ducts, glands and the external genitalia. Testes or TesticlesTestes are located outside the abdominal cavity within a pouch known as the scrotum. The role of the scrotum…

Human Reproduction-Diagrams

Human Reproduction-Diagrams 1Male Reproductive System 2Female Reproductive System 3Section of a Seminiferous Tubule 4Section of a Mammary Gland 5Structure of a Human Sperm 6Structure of an Egg 7Gametogenesis: Spermatogenesis and Oogenesis 8Menstrual Cycle 9Fertilization 10Embryonic Development 11Human Foetus Inside the…

Sexual Reproduction In Flowering Plants-Notes

Sexual Reproduction In Flowering Plants Morphology of Flower Flowers are the primary reproductive organs of the plants. They are attractive, colourful, often fragrant and nectar producing structures of flowering plants. The flower is commonly borne on short or long stalk called the pedicel.…

Sexual Reproduction In Flowering Plants-Concept

Sexual Reproduction In Flowering Plants-Concept Microsporangium 1. Structure in plant’s male reproductive organ which develops into pollen sac2. Each anther has fourmicrosporangia3. Development of pollen takes place here Structure of Microsporangium and Formation of Pollen 1. Surrounded by four wall layers –…

Reproduction in Organism-Diagrams

Reproduction in Organism-Diagrams 1 Binary Fission in Amoeba 2 Multiple Fission 3 Budding in Yeast 4 Budding in Hydra 5 Regeneration in Starfish 6 Fragmentation in Spirogyra 7 Types of Gametes 8 Sexuality in Animals 9 Sexuality in Plants 10 Homogametic Transfer in…

Reproduction in Organism-Notes

Reproduction in Organism-Notes Reproduction (i) One of the characteristic features of all living organisms is the ability to reproduce.(ii) After all, for a species to continue there has to be the addition of young individuals. Otherwise, it will simply end…

Reproduction In Organisms-Concepts

Reproduction In Organisms-Concepts Advantages and disadvantages of asexual reproduction Advantages1. It is uniparental reproduction, therefore, a mate is not required.2. It involves simple processes of division, amitosis, and mitosis.3. It is a quick mode of reproduction.4. A single parent may…

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