जीव विज्ञान – Zoology – Zoology MCQ

जीव विज्ञान – Zoology: प्रश्न र उत्तर

सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।

सही: ० / ०

171. The process of metamorphosis observed in amphibians like tadpoles is a form of:

     कRegeneration खAsexual reproduction गComplete Metamorphosis घIncomplete Metamorphosis
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

172. Which of the following represents a characteristic feature of cnidarians (e.g., jellyfish)? (a) A closed circulatory system with fully formed blood vessels. (b) Radial symmetry and specialized stinging cells called nematocysts. (c) Segmented body plan with paired appendages for locomotion. (d) Bilateral symmetry with a defined head region and complex nervous system.

     क(a) A closed circulatory system with fully formed blood vessels. ख(b) Radial symmetry and specialized stinging cells called nematocysts. ग(c) Segmented body plan with paired appendages for locomotion. घ(d) Bilateral symmetry with a defined head region and complex nervous system.
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

173. The formation of the blastocoel cavity during early embryonic development in mammals is primarily due to: (a) Fluid pressure generated by active cell migration (b) The dissolving of intercellular junctions between cells (c) Osmotic movement of water into the embryo (d) The contraction of muscle fibers

     क(a) Fluid pressure generated by active cell migration ख(b) The dissolving of intercellular junctions between cells ग(c) Osmotic movement of water into the embryo घ(d) The contraction of muscle fibers
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

174. Which of the following best describes the mechanism of action of a cnidocyte (stinging cell) found in jellyfish? (a) It secretes digestive enzymes directly into its prey’s tissues (b) It triggers rapid depolarization of the nematocyst, ejecting a coiled toxin (c) It absorbs nutrients from surrounding water through osmosis (d) It facilitates gas exchange between blood and water

     क(a) It secretes digestive enzymes directly into its prey’s tissues ख(b) It triggers rapid depolarization of the nematocyst, ejecting a coiled toxin ग(c) It absorbs nutrients from surrounding water through osmosis घ(d) It facilitates gas exchange between blood and water
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

175. The process of metamorphosis observed in amphibians like tadpoles transitioning to frogs primarily involves changes in: (a) The size and shape of their bones (b) The development of specialized feeding structures (c) The transformation of larval tissues into adult adult forms (d) Increased metabolic rate

     क(a) The size and shape of their bones ख(b) The development of specialized feeding structures ग(c) The transformation of larval tissues into adult adult forms घ(d) Increased metabolic rate
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

176. Which of the following statements accurately describes the role of platelets in mammalian blood? (a) They transport oxygen throughout the body (b) They are responsible for antibody production (c) They play a crucial role in blood clotting and hemostasis (d) They regulate blood glucose levels

     क(a) They transport oxygen throughout the body ख(b) They are responsible for antibody production ग(c) They play a crucial role in blood clotting and hemostasis घ(d) They regulate blood glucose levels
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

177. The primary function of goblet cells found in the human small intestine is to: (a) Secrete digestive enzymes (b) Produce mucus for lubrication and protection (c) Absorb nutrients from digested food (d) Transport blood to the intestinal lining

     क(a) Secrete digestive enzymes ख(b) Produce mucus for lubrication and protection ग(c) Absorb nutrients from digested food घ(d) Transport blood to the intestinal lining
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

178. In amphibians, the tympanic membrane (eardrum) is primarily used for:

     कA. Producing vocalizations through vibration. खB. Detecting pressure changes in the air or water to sense sound. गC. Filtering external sounds into specific frequencies. घD. Amplifying the intensity of internal organ noises.
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

179. Which of the following accurately describes the function of the notochord in chordates?

     कA. It's a protective outer layer that shields the developing embryo. खB. It provides skeletal support and serves as a primitive backbone. गC. It’s a specialized organ involved in respiration. घD. It’s a digestive gland responsible for nutrient absorption.
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

180. The process of exocytosis, where vesicles fuse with the plasma membrane, is most closely associated with which of the following cellular activities?

     कA. Phagocytosis – engulfing large particles. खB. Secretion – releasing hormones or enzymes. गC. Osmosis – movement of water across a semi-permeable membrane. घD. Mitosis – cell division and chromosome duplication.
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।