Would it make it easier or more difficult for you to walk on the floor? Answer In Sexual reproduction, two parents are involved for the production of new generation. Vedantu's online tuition courses are free of all these risks and are gaining widespread popularity among students, teachers, and guardians alike. Visit to of the page to select the other chapters. Answer 6 Spikes increase friction and give better grip with the ground. Answer Question 6 Explain the difference between self-pollination and cross-pollination. Example: Dandelion, maple, drumstick, etc. Most of the plants reproduce sexually with the help of flowers and seeds.
The new yeast cell grows, matures and produces more yeast cells. Download options are given at the end of these solutions. Download options are given at the end of these solutions. For example, birds and animals can eat the fruits and excrete the seeds away from the parent plant. Parent cell elongates and gets divided into two identical daughter cells. Aeroplanes, jets, rain drops have streamlined curve surface to reduce air drag. A male gamete fuses with a female gamete in the ovule.
Question 2 Describe the different methods of asexual reproduction. Question 7 How does the process of fertilisation take place in flowers? They germinate where they fall. A new filament is formed from each part thus forming two organisms from a single organism. Examples: Stem cutting in Champa, eye growth in potatoes etc. Question 7: How does the process of fertilisation take place in flowers? Examples: Stem cutting cutting in champa, eye growth in potatoes, bud in case of bryophyllum etc. It occurs only in bisexual flowers. In asexual reproduction, newly developed plants are identical to the parent and to each other.
Answer Self pollination Cross Pollination i Transfer of pollen from the stamen to the pistil of the same flower. When the pollen tube reaches an ovule, it releases the male gametes. Seema will have to apply larger force. When objects are moving, there is less interaction between their surfaces. Conservation of momentum and their application in daily life. Question 2: Describe the different methods of asexual reproduction. Soapy water fills the floor irregularities, thus reduces the friction considerably.
Each spore is covered by a hard protective coat to withstand unfavourable conditions such as high temperature and low humidity. The cell which results after fusion of the gametes is called a zygote which further develops into embryo. Potato plant sprouting from an eye is a common example. Download options are given at the end of these solutions. It occurs in both unisexual and bisexual flowers. Examples: Mango, rose and most of the flowering plants. State the main difference between asexual and sexual reproduction.
The formation of a complete plant from a stem cutting of rose is a common example of this method. This step is called fertilization. Examples: Xanthium, Urena, Mango etc. Examples: Sunflower, maple, drumsticks etc. Examples: Stem cutting cutting in champa, eye growth in potatoes, bud in case of bryophyllum etc.
Download options are given at the end of these solutions. Some fruits have hooks on them which cling to fur or clothes. Download options are given at the end of these solutions. Hence, it becomes easier for the body to move through the fluid. Bursting Some seeds are dispersed when the fruits burst with sudden jerks and the seeds are scattered far from the parent plant. How does the process of fertilization take place in flowers? Sketch the reproductive parts of a flower. We also have a responsive support team and students can approach them to clear all their doubts.
You are free to download these exemplar books and their answers is also given in the same section. Answer 4 Friction force acts opposite to the motion of the book. The reproduction is done by male and female gametes. Spores are tiny cells protected by a thick wall. Such a flower is called unisexual. Describe the various ways by which seeds are dispersed.