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
-
The delay in the conduction of the cardiac impulse, which allows the atria to empty completely before the ventricles contract, occurs at the:
सही उत्तर: ख) Atrioventricular (AV) node
The impulse is delayed for about 0.1 s at the AV node before passing to the bundle of His and the ventricles.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The dense fibrous connective tissue that attaches a skeletal muscle to a bone is called a:
सही उत्तर: ख) Tendon
Tendons join muscles to bones; ligaments join bone to bone.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The epithelium lining the walls of blood vessels and the air sacs (alveoli) of the lungs is:
सही उत्तर: ख) Simple squamous epithelium
A single layer of thin flat cells allows easy diffusion, so simple squamous epithelium lines blood vessels and alveoli.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Tooth-like placoid scales covering the skin are characteristic of:
सही उत्तर: ग) Cartilaginous fishes such as sharks
Sharks and rays (Chondrichthyes) have placoid scales; bony fishes have cycloid or ctenoid scales.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which reptile has a completely four-chambered heart?
सही उत्तर: ख) Crocodile
Most reptiles have an incompletely divided ventricle, but crocodiles have a complete septum and hence four chambers.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
In insects such as the cockroach, nitrogenous wastes are removed mainly by:
सही उत्तर: घ) Malpighian tubules
Malpighian tubules, opening at the junction of the midgut and hindgut, absorb wastes from haemolymph in insects.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Lampreys and hagfishes, which have a sucking circular mouth without jaws, belong to the class:
सही उत्तर: क) Cyclostomata
Cyclostomes are jawless vertebrates (Agnatha) with a circular suctorial mouth and no paired fins.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Marine animals that move with eight rows of ciliated comb plates and show bioluminescence belong to phylum:
सही उत्तर: घ) Ctenophora
Ctenophores (comb jellies) such as Pleurobrachia swim using eight external rows of ciliated comb plates.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The inflorescence of sunflower, with many sessile florets on a flattened receptacle, is a:
सही उत्तर: घ) Capitulum (head)
Sunflower has a capitulum, with ray florets at the margin and disc florets in the centre on a flat receptacle.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
In the embryo of a grass such as maize, the single shield-shaped cotyledon is called the:
सही उत्तर: ख) Scutellum
The scutellum is the cotyledon of monocot grasses; the coleoptile and coleorhiza are sheaths over the plumule and radicle.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।