Question

how modes of reproduction different from unicellular and multicellular organism?​

Answer 1

Answer:

Unicellular organisms reproduce by asexual methods such as binary and multiple fission,while multicellular organisms reproduce by both asexual as well as sexual mode of reproduction. In higher complex multicllular organisms sexual mode is more common.25-

Answer 2

• The modes for reproduction in unicellular oganisms are:

(i) Binary fission: In this the parent undergoes a simple division into two daughters of equal size. It consists of division of the nucleus followed by cleavage of cytoplasm into equal parts, each having a daughter nucleus. Beg- amoeba.

(ii) Multiple fission: The parent divides into many daughter cells simultaneously. eg in plasmodium.

• The modes of reproduction in multicellular organisms are:

(i) Regeneration: The organism gives rise to new individual organisms from cut or broken body parts. eg in Hydra.

(ii) Fragmentation: The mature Spirogyra (an alga) breaks into two or more pieces (fragments). Each fragment grows into new individual. The process is called Fragmentation.

(iii) Sexual Reproduction: This is the mode which involves male and female gametes which fuse to from the zygote.

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• Name : Gyan prakash verma.
• Class : IXth "B".
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