Practise Zoology MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Study Zoology through multiple-choice questions in Everyday Science. This subtopic contains 1568 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Zoology MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
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Answer: Nocturnal
Explanation Bats are nocturnal animals. This means they are primarily active at night and sleep or rest during the day. Kingdom: Animalia Phylum: Chordata Class: Mammalia Clade: Scrotifera Clade: Apo-Chiroptera Order: Chiroptera
فلیجیلیٹڈ کالر سیل کون سے ہیں، سپنج کے ذریعے پانی کا کرنٹ پیدا کرتے ہیں اور معلق کھانا کھاتے ہیں؟
Answer: Choanocytes
Explanation Choanocytes are flagellated collar cells in sponges that create water currents and help trap and ingest food particles. They play a vital role in the sponge's filter-feeding system.
مچھلی کے تالاب کی تعمیر کے لیے کونسی مٹی موزوں ہے؟
Answer: Clay
Explanation Clay soil is suitable for fish pond construction as it retains water effectively. Its compact nature prevents seepage . It maintaining pond water levels efficiently.
______ اور کچھ دیگر فائیلا کلیڈ ڈیوٹروسٹومیا سے تعلق رکھتے ہیں۔
Answer: Chordates
Explanation Chordates and echinoderms are part of the clade Deuterostomia. Due to their shared embryonic development patterns. This clade is characterized by radial , indeterminate cleavage , and the blastopore forming the anus .
Answer: Intracellular communication
Explanation Gap junctions are specialized structures that allow direct communication between adjacent cells. They are formed by connexin proteins that create channels enabling the exchange of ions, metabolites, and other small molecules between cells.
کس جانور کا نیلے رنگ کا خون ہے؟
Answer: Octopus
Explanation Octopus has blue-colored blood because it contains hemocyanin, which is copper-based . Hemocyanin turns blue when oxygenated, unlike iron-based hemoglobin .
جب انواع ایک ماحولیاتی نظام میں ختم ہو جاتی ہیں لیکن دوسرے میں زندہ رہتی ہیں تو معدومیت کو _____ کہا جاتا ہے؟
Answer: Local
Explanation Local extinction occurs when a species disappears from a specific area or ecosystem but continues to exist in other regions. It affects the local biodiversity and ecological balance but does not mean the species is globally extinct.
گیم ٹوجینیسیس کے دوران اس پروگرام کا کیا نام ہے جب کروموسوم کے ٹکڑے صحیح سائٹوں پر دوبارہ مل سکتے ہیں لیکن غلط سرے کے ساتھ؟
Answer: Inversion
Explanation Inversion occurs when a segment of a chromosome breaks off, reverses its orientation, and reattaches at the same location. This can lead to improper gene alignment but does not involve loss of genetic material like deletion .
اوسٹکتھائس میں، _________ اچھی طرح سے تیار ہوتے ہیں اور پھیپھڑوں کے طور پر کام کرتے ہیں۔
Answer: Swim bladder
Explanation In osteichthyes (bony fish), the swim bladder is well developed and functions as a lung for buoyancy control and gas exchange in some species. This organ helps fish adjust their position in the water column and, in certain species, assists in respiration.
لرنیا مچھلی کا ایک ______ پرجیوی ہے۔
Answer: External
Explanation Lernaea (anchor worm) is an external parasite that attaches to the skin, fins, or gills of fish. It causes irritation, wounds, and secondary infections in affected fish.
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