Please select a subject first
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Write any three criteria on which different types of reflexes are based.
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Name any two respiratory centres required for regulation of breathing.
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What are the reasons for loss of biodiversity?
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The mammalian nervous system uses both electrical and chemical means to send signal via neurons. Which part of the neuron receives impulses?
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Fill in the column 'B' with appropriate answer:
| Column A | Column B | ||
| (I) | Water adsorbed on soil particles | (a) | ______ |
| (ii) | Water penetrated deep in soil | (b) | ______ |
| (iii) | Water present as hydrated oxides | (c) | ______ |
| (iv) | Water present between soil particle | (d) | ______ |
(Capillary water, Combined water, Hygroscopic water, Gravitational water)
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Water imbibed or adsorbed on soil particles.
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Mating of two closely related individuals within the same breed is called ______.
(a) In-breeding
(b) Out-breeding
(c) Out-crossing
(d) Cross-breeding
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Visit of a veterinary doctor to dairy farm is mandatory. Give reasons.
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Give the economic importance of ‘fisheries’
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Describe steady population with the help of a pyramid.
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In____________ , superior males of one breed are mated with superior females of another breed.
- out crossing
- cross breeding
- out breeding
- inbreeding
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Give 'two' varieties of silk which are considered as inferior quality
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Which method of conservation of biodiversity includes 'hotspot' method?
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Justify the conservation of endangered species of plants and animals is necessary
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Elephantiasis is caused by ________________.
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Crippling disease is caused due to poisoning of ____________.
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Mention any ‘two’ methods used to prevent spoilage of fish
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Give economic importance of apiculture
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Differentiate between Euchromatin and Heterochromatin.
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Construct an age pyramid which reflects an expanding growth status of human population.
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