कृषि, पशु र वन विज्ञान प्रवेश
कृषि, पशु र वन विज्ञान प्रवेश
Agriculture, Veterinary & Forestry Entrance · २,४९३ प्रश्न
२,४९३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि/वन प्रवेश: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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The intermediate host of the pork tapeworm Taenia solium is the:
सही उत्तर: घ) Pig
Humans are the definitive host of Taenia solium; the pig harbours the larval cysticercus stage, so pig is the intermediate host.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The infective filariform larva of the human hookworm (Ancylostoma duodenale) usually enters the body by:
सही उत्तर: ग) Penetrating the skin, often of bare feet
Hookworm larvae in soil penetrate the skin, commonly of the feet of people walking barefoot.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The heart of a typical bony fish such as rohu has:
सही उत्तर: ग) One atrium and one ventricle
Fishes have a two-chambered heart with one atrium and one ventricle that pumps only deoxygenated blood (single circulation).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In which chordate does the notochord extend from head to tail and persist throughout life?
सही उत्तर: घ) Branchiostoma (Amphioxus)
In cephalochordates such as Branchiostoma the notochord runs from head to tail and persists throughout life, unlike urochordates where it is only in the larval tail.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Alternation of an asexual polyp form with a sexual medusa form (metagenesis) is seen in:
सही उत्तर: क) Obelia
In Obelia the polyp produces medusae asexually and the medusae reproduce sexually to form polyps, showing metagenesis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The rasping, file-like feeding organ found in the mouth of most molluscs is the:
सही उत्तर: ख) Radula
The radula is a chitinous ribbon with rows of teeth used for scraping food, characteristic of molluscs.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In flatworms such as Planaria and liver fluke, osmoregulation and excretion are carried out by:
सही उत्तर: घ) Flame cells
Platyhelminthes have protonephridia with specialised flame cells for osmoregulation and excretion.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A water vascular system with tube feet used for locomotion and food capture is a characteristic feature of:
सही उत्तर: ग) Echinodermata
Echinoderms such as starfish possess a water vascular system that operates tube feet; it is unique to this phylum.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Cnidoblasts (cnidocytes), used for anchorage, defence and capture of prey, are found in:
सही उत्तर: ख) Hydra and other coelenterates
Cnidoblasts containing nematocysts (stinging capsules) are the distinctive cells of phylum Cnidaria (Coelenterata) such as Hydra.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Choanocytes (collar cells) that line the spongocoel and canals are characteristic of phylum:
सही उत्तर: क) Porifera
Choanocytes with a flagellum and collar create water current and trap food; they are unique to sponges (Porifera).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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