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Each example: 0.5 Mark
Drumsticks and maple are two examples of plants which have winged seeds dispersed by wind.

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Explanation: 3Marks
Examples: 2Marks
Budding - Buddingis a method of asexual reproduction where a small outgrowth called bud is produced from the parent body. The budgrows and detaches from the parent body and givesrise to a whole new organism. This mode of reproduction is seen in yeast.
Fragmentation - Fragmentation is the process in which the body of the organism gets cut into smaller fragments. Each fragment gives rise to a new individual. This process is observed in simpler organisms like spirogyra.

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Each point: 0.5 Mark
(i) Stigma
(ii) Style
(iii) Ovary
(iv) Ovules

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Each point: 1 Mark
Seed dispersal occurs by the following agents:
1. Dispersal by wind - The seeds that are dispersed by wind are usually light in weight and have wing-like structures for efficient propagation. The stigma of these flowers have hair like structures. eg: maple.
2. Dispersal by water - This kind of dispersal occurs in aquatic plants and plants which grow near water bodies. eg: coconut seeds.
3. Dispersal by animals - Some seeds have spine-like structures on them. They get stuck on the fur of the animals and get spread to different places.

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Each point: 1 Mark
A spore is an asexualreproductive bodydeveloped by an organism. It has a thick protective coating that protects it.
Spores are formed when the conditions are not favourable for the organism to reproduce. When favourable conditions return, the spore germinates to give rise to new individual organism.
Spores arethe means of reproductionin many fungi like the bread mould and plants like moss and ferns.

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Each point: 1 Mark
After pollination, male gamete present in the pollen grains moves into the ovules and fuses with the female gamete. The single cell resulting from this fusion is called a zygote. This process is called fertilization.

Answer: Option B. -> spirogyra
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B
Fragmentationis a form ofasexual reproduction,in which an organism splits into fragments. Each of these fragments develops into mature, fully grown individuals that are clones of the original organism.Algae reproduceasexually with the help of this method. Spirogyrais a multicellular filamentous green alga found in fresh water.

Answer: Option C. -> Maize
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C
Afloweris unisexual if itpossesses either stamen(the male reproductive part)or carpels (the female reproductive part)but not both. Bisexual flowers contain both these parts. An example of unisexual flower is maize.

Answer: Option A. -> True
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A
A flower can have both male and female reproductive parts. The male part is called androecium and the female part is called gynoecium. Such flowers are called bisexual flowers. E.g., hibiscus, lily etc.

Answer: Option A. -> True
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A
Asexual reproduction is a method of reproduction which requires only one parent. There is no exchange of genetic information and the offsprings are identical to the parent due to which seed formation is not required. Hence, plants reproduce without seeds through methods such as budding, vegetative propagation and fragmentation.