Once pollen grain spreads on the stigma, it produces a pollen tube. This process is called germination of pollen grain. The pollen tube penetrates the style and reaches the ovary. Male nucleus is transferred through this pollen tube. Finally, fusion of male and female nuclei takes place inside the oRead more
Once pollen grain spreads on the stigma, it produces a pollen tube. This process is called germination of pollen grain. The pollen tube penetrates the style and reaches the ovary. Male nucleus is transferred through this pollen tube. Finally, fusion of male and female nuclei takes place inside the ovary. This step is called fertilization.
Asexual Reproduction: 1. Only one parent is needed. 2. Offspring is normally similar to parent. 3. Yeast, hydra, spirogyra etc. show asexual reproduction. Sexual Reproduction: 1. Two parent (Male and female gametes) are required. 2. Offspring shows variation with respect to parent. 3. Animals, humanRead more
Asexual Reproduction:
1. Only one parent is needed.
2. Offspring is normally similar to parent.
3. Yeast, hydra, spirogyra etc. show asexual reproduction.
Sexual Reproduction:
1. Two parent (Male and female gametes) are required.
2. Offspring shows variation with respect to parent.
3. Animals, human, insects etc. show sexual reproduction.
When two parents are involved in reproduction, the method is called sexual reproduction. The male and female gametes fuse during fertilization to produce zygote. The zygote subsequently develops into an embryo which further develops into a new individual. https://www.tiwariacademy.com/ncert-solutionRead more
When two parents are involved in reproduction, the method is called sexual reproduction. The male and female gametes fuse during fertilization to produce zygote. The zygote subsequently develops into an embryo which further develops into a new individual.
The reproductive part of a plant is the
The reproductive part of a plant is the (iv) flower. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-12/
The reproductive part of a plant is the (iv) flower.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-12/
See lessHow does the process of fertilisation take place in flowers?
Once pollen grain spreads on the stigma, it produces a pollen tube. This process is called germination of pollen grain. The pollen tube penetrates the style and reaches the ovary. Male nucleus is transferred through this pollen tube. Finally, fusion of male and female nuclei takes place inside the oRead more
Once pollen grain spreads on the stigma, it produces a pollen tube. This process is called germination of pollen grain. The pollen tube penetrates the style and reaches the ovary. Male nucleus is transferred through this pollen tube. Finally, fusion of male and female nuclei takes place inside the ovary. This step is called fertilization.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-12/
See lessState the main difference between asexual and sexual reproduction.
Asexual Reproduction: 1. Only one parent is needed. 2. Offspring is normally similar to parent. 3. Yeast, hydra, spirogyra etc. show asexual reproduction. Sexual Reproduction: 1. Two parent (Male and female gametes) are required. 2. Offspring shows variation with respect to parent. 3. Animals, humanRead more
Asexual Reproduction:
See less1. Only one parent is needed.
2. Offspring is normally similar to parent.
3. Yeast, hydra, spirogyra etc. show asexual reproduction.
Sexual Reproduction:
1. Two parent (Male and female gametes) are required.
2. Offspring shows variation with respect to parent.
3. Animals, human, insects etc. show sexual reproduction.
Explain what you understand by sexual reproduction.
When two parents are involved in reproduction, the method is called sexual reproduction. The male and female gametes fuse during fertilization to produce zygote. The zygote subsequently develops into an embryo which further develops into a new individual. https://www.tiwariacademy.com/ncert-solutionRead more
When two parents are involved in reproduction, the method is called sexual reproduction. The male and female gametes fuse during fertilization to produce zygote. The zygote subsequently develops into an embryo which further develops into a new individual.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-12/
See lessSeed dispersal takes place by means of _____________, _____________ and _____________.
Seed dispersal takes place by means of wind, water and animal. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-12/
Seed dispersal takes place by means of wind, water and animal.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-12/
See less