National parks and wildlife sanctuaries are examples of which type of conservation?
A. Tissue culture
B. Cryopreservation
C. Ex-situ conservation
D. In-situ conservation
Answer: Option D
Solution (By JKSSB Mock Tests)
In-situ (on-site) conservation involves the conservation of species in their natural habitats. National parks, wildlife sanctuaries, and biosphere reserves are examples of in-situ conservation. Ex-situ (off-site) conservation involves taking endangered species out of their natural habitat and placing them in special settings like zoological parks, botanical gardens, and seed banks for conservation and breeding.
Explanation:
Urine specific gravity, a measure of solute concentration, normally ranges from 1.015 to 1.030. It varies with hydration status: low when dilute (after drinking), high when concentrated (dehydration). Diabetes insipidus shows low SG, diabetes mellitus may show high due to glucose.
Explanation:
Meiosis I features crossing over (prophase I) and independent assortment of homologous chromosomes, creating genetic diversity in gametes. Mitosis produces identical cells, binary fission is asexual, fragmentation is a form of asexual reproduction.
Explanation:
Porifera (sponges) are characterized by the presence of a complex water canal system (canal system) used for food gathering, respiratory exchange, and waste removal. Water enters through numerous small pores called ostia and exits through a large opening called the osculum. They are mostly marine and asymmetrical.
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