1. Why is reproduction essential for organisms?
2. Which is a better mode of reproduction: sexual or asexual? Why?
3. Why is the offspring formed by asexual reproduction referred to as clone?
Answers
Q (1). Why is reproduction essential for organisms?
Ans: Reproduction is a process by which living organisms can produce offspring's similar to them. It is a fundamental feature of all living organisms. Reproduction may be sexual or asexual. Reproduction play a major role in the continuity of many species on Earth. In the absence of reproduction, species can not able to exist for a long time and will be extinct if organisms don not form. So, we can say that Reproduction is a essential for organisms.
Q (2). Which is a better mode of reproduction: sexual or asexual? Why?
Ans: Sexual Mode of reproduction is a better mode of reproduction than Asexual because in sexual mode of reproduction two parents involved from which one is male and another is female and fusion of male and female gametes by the combination of DNA from two different individuals. Therefore, we get large variation in offspring ( new organism formed ) as compared to thier parents. On the other hand, Asexual reproduction allow very little change or no variations at all.
Q (3). 3. Why is the offspring formed by asexual reproduction referred to as clone?
Ans: Clone reffer to a group of genetically identical organisms. In sexually reproducing organisms crossing over meiosis and random fertilization of male and female gametes add genetic diversity. On the contrary, Asexual reproduction skip meiosis and fertilization of male and female gametes therefore it produces genetically identical progeny i.e clone by single parent cell.
Answer:
Answers of the Question that follow:
1.Why is reproduction essential for organisms?
Reproduction is a process by which organisms can produce more of its own kind.It is of two types:- Sexual and asexual. Reproduction helps in maintaining the ecosystem of the planet.Therefore,it can be said that reproduction is essential.
2.Which is a better mode of reproduction: sexualcq or asexual? Why?
I think, Asexual mode of reproduction is better.
Asexual reproduction- It is the mide of Reproduction of young ones by single parent.It continues without the Formation and fusion of gametes.It is also called Uniparental Reproduction.
It is a better mode because:-
i)The new individuals that get formed are very much genetically identical to its parent.
ii)It is primitive method.
iii)They take less time in their formation.
iv)They also have the same desirable character that are present in their parent.
3.Why is the offspring formed by asexual reproduction referred to as clone?
They are so referred because they have the same identical and also derive the same characters from their parent.