State reasons for the following statement:-
G-
1. There is a less chance for self pollination in maize plant.
2. We cannot conduct an experiment on plant respiration during day time
3. Casing is important in mushroom cultivation
4. Seadis sown very deep in soil fail to germinate
7.5 Bacteria is used in leather tanning
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Answers
Answer:
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Answer:
1 ) How does a maize plant avoid self pollination?
In species in which staminate and pistillate flowers are found on the same individual (monoecious plants) and in those with hermaphroditic flowers (flowers possessing both stamens and pistils), a common way of preventing self-fertilization is to have the pollen shed either before or after the period during which the ...
2 ) It is not possible to demonstrate respiration in green plants kept in sunlight because during day time plants are undergoing photosynthesis. During this time oxygen is given out by plants as waste product and they take carbon dioxide to make food their own food
3 ) Mushrooms will not grow without evaporation. The casing soil structure, through the depth of casing and on the surface, is the factor that determines how much water can absorbed and released. This is also known as the water buffer.
4 ) ANSWER
In seeds food is stored in the form of lipids, so, initially, seeds don't need sunlight for germination. Seeds just need oxygen and water. oxygen to start the respiration so the seedling break surface of the soil to germinate. Too deep, no oxygen and seed fail to germinate.
So, the correct answer is 'They don't get air'.