Reproduction chapter 10 class explain
Answers
★ What is reproduction ?
All living organism have a lifespan after which they die no organism live forever how we were all living organisms are able to produce more of their own kind before they die . This ability to reproduce is a common characteristics of all the living organism , the process by which living organism can produce more of their own kind is known as reproduction.
★ what are the vegetative parts of the plant ?
The vegetative parts of plants are as follows :-----
- Roots
- Stem
- Leaves
★ Which part of the plant is known as reproductive parts of the plant ?
Flower is known as reproductive part of the plant .
★ List the types of reproduction .
The methods of reproduction in plants are generally grouped into two main types 'Asexual' and 'Sexual' reproduction.
★ Asexual Reproduction :----- in a sexual reproduction and individual can reproduce on its own without involvement of any other individuals of the same species the division of the bacterial cell into daughter cell is an example of asexual reproduction. Asexual Reproduction is not however limited to single celled organism most of the plants have the ability to reproduce asexually.
★ Sexual Reproduction :------ Sexual reproduction requires the involvement of two individual typically one of each sex. Normal human reproduce is a common example of sexual reproduction in flowering plants the reproductive parts are located in the flower.
★ what are seed dispersal ?
most higher plants reproduce by producing seeds the seeds are also help in plants to spread out and grow in new places sometimes a long distance away from the parent plant this is important because if the seeds are not disperse a large number of germinating seedlings can grow a very closer to Parent plant this will result in competition between all such seedlings as well as parent plant in the competition for getting light ,space, water and nutrition ; all of these are important for plants to be able to grow and survive seed can be disposed in a number of different ways depending on the nature of the see that they may be carried by wind , they may be carried out by water or animals or by the explosion of the fruits.
★ Types of seed dispersal method .
★ Dispersal by wind -----»
Seeds are very light get carried out to be a new place by wind the seeds of the acids are almost as fine as dust many others like the seed of aak (madar) han hair Regrowth which act like little parachutes and carried the seeds away from the parent plant .
★ Dispersal by water -----»
Fruits which floats such as those of the lotus flower Lily and the coconut Palm are carried away by water coconuts can travel for the thousands across seas and ocean.
★ Dispersal by animals ------»
Some plants have juicy fruit that animal like to eat the animal eat the fruit but only the juicy part is digested the seeds passthrough the animal digestive system as such they are deposited on the land Where are they formed new plants this land can be far away from the parent plant tree and Apple seeds are dispersed in this way only Birds also like to eat some fruits they helped to disperse the seeds to another area for they are dropping some seeds of those of urnea how spinny seeds with hooks these seats get attached to the for of animal and are carried away .
★ Dispersal by explosion of the fruit -----»
Some plants have pods that explode when ripe and shoot out to the seeds , The seeds can get scattered far away from the parent plant. seeds of Pea and Bean plants are formed in pods.The pod is dried thus the pod brusts open and their seeds get scattered.