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प्रश्न
Name two flowering plants that reproduce both by seeds and by vegetative means.
उत्तर
Orchids, Rose
APPEARS IN
संबंधित प्रश्न
A student has to focus his compound microscope to observe a prepared slide showing different stages of binary fission in Amoeba. The steps he is likely to follow are listed below in a haphazard manner:
I. Adjust the diaphragm and the mirror of the microscope so that sufficient light may enter to illuminate the slide.
II. Fix the slide on the stage carefully.
III. Adjust the microscope to high power and focus.
IV. Adjust the microscope to low power and focus.
The correct sequence of the above steps to observe the slide under the microscope is
(A) I, II, IV, III
(B) II, I, IV, III
(C) II, IV, I, III
(D) I, IV, II, III
Explain the process of regeneration in Planaria.
Name the artificial propagation mehod used for the propagation of apple trees.
What is fragmentation in organisms?
Rewrite the following statement by selecting the correct option.
When Hydra becomes matured, _________ takes place in it.
Define vegetative propagation. List its two methods.
In the following Question, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
Assertion: Amoeba reproduced by fission.
Reason: All unicellular organisms are reproduced by the asexual method.
Offspring formed by asexual method of reproduction have greater similarity among themselves because
- asexual reproduction involves only one parent
- asexual reproduction does not involve gametes
- asexual reproduction occurs before sexual reproduction
- asexual reproduction occurs after sexual reproduction
Which of the following statements are true for flowers?
- Flowers are always bisexual
- They are the sexual reproductive organs
- They are produced in all groups of plants
- After fertilisation they give rise to fruits
Rajesh observed a patch of greenish black powdery mass on a stale piece of bread.
Name the organism responsible for this and its specific mode of asexual reproduction.
