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प्रश्न
Observe the following picture and describe the type of reproduction shown in.
उत्तर
Regeneration in Planaria is shown in picture.
Under certain circumstances, its body cuts in to two parts. Each part regenerates the cut part and thereby two planaria are formed.
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संबंधित प्रश्न
Draw a neat diagram of the structure of chromosome and label the parts :
1) Centromere
2) p-arm
Short answer question.
Write a note on budding in Hydra.
Short answer question.
Explain the different methods of reproduction occurring in sponges.
Define.
Regeneration
Write the name of the type of reproduction in the following figure.
Write a short note.
Budding in Hydra
Observe the given diagram and explain the method of reproduction.
Read the following paragraph and write the answers to the questions based on it.
Reproduction is an important process for the survival of an organism. Asexual reproduction occurs in different ways in plants. E.g. Vegetative propagation, fragmentation, budding, spore formation etc. Gametes are formed for sexual reproduction. In the animal kingdom, various methods like budding, binary fission, and parthenogenesis are used. There is no difference between males and females in the animals in which these methods are observed. The method of regeneration also creates new organisms. But regeneration is not the real method of reproduction. Regeneration is the process of healing wounds, creating new organs. This ability has completely disappeared in the developed animals. Modern research is being done on the method of sexual reproduction, e.g. Cloning. So, in the future women will be able to create their own offspring without a father.
- How do living organisms maintain their own species continuity?
- What are the methods of asexual reproduction in animals?
- Why is it said that regeneration is not the real method of reproduction?
- What are the different methods of reproduction in plants?
- What modern breeding methods are being researched in developed animals?
Fission is a way of ______ reproduction
Which disease manifests the following symptoms?
______ is a form of asexual reproduction that results from the outgrowth of a part of the body.
Although 2 cells called gametes fuse, the product formed is a single cell called zygote. Justify.
Fill up the blanks with the terms given below :
| body | asexual | binary | single | nucleus |
Amoeba is a ______ celled organism. It reproduces by ______ reproduction.
The process of reproduction begins by the division of its ______ into two.
This is followed by the division of its ______ into two. This type of reproduction is called ______ fission.
Gemmule formation in sponges is useful in ______
There are thorns of calcium carbonate on the body of the animal named ______.
Budding in Hydra is a form of ______.
What is cryptorchidism?
