4.Answer the following questions in 60-80 words: a)Describe the process of fertilisation in plants with the help of a diagram. b)Explain doubles circulation and state its importance in the human body.
Answers
Answer:
Fertilization in plants: In plants, pollination is followed by fertilization. Once the pollen grains are deposited on the stigma, it forms the pollen tube. The pollen tube grow through the ovules and reach the ovary where the egg cell is located. The pollen tube normally enters the ovule through a small opening called micropyle.
Fertilization is a process of sexual reproduction in plants, which occurs after the pollination and germination.Fertilization can be defined as the fusion of the male gametes (pollen) with the female gametes (ovum) to form a diploid zygote. It is a physicochemical process which occurs after the pollination of the carpel. The complete series of this process takes place in the zygote to develop into a seed.In the fertilization process.
Explanation:
