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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کفالت کے میسنکائم میں ، آثار قدیمہ _____ کا کام انجام دیتے ہیں؟
Answer: Reproduction
Explanation Archeocytes are totipotent amoeboid cells in the mesohyl that differentiate into various cell types, including gametes. They play a crucial role in reproduction (both sexual and asexual) and regeneration in sponges.
Answer: Annelids
Explanation Annelids do have a closed circulatory system, along with other invertebrates and vertebrates Annelids, like earthworms, have a closed circulatory system. In annelids, blood is pumped along by muscles in blood vessels. The blood picks up food molecules from the digestive tract and oxygen from the skin. It then transports these to the cells of the body.
ارتقاء کا نمونہ جس میں دو قریب سے متعلق آبادی آہستہ آہستہ زیادہ سے زیادہ مختلف ہوتی جاتی ہے؟
Answer: Divergent evolution
Explanation Divergent evolution occurs when two closely related populations gradually become more different due to different environmental pressures. Convergent evolution happens when unrelated species evolve similar traits due to similar environmental pressures.
فوسلائزیشن کے لیے کون سا موزوں ذریعہ ہے؟
Answer: Sea water
Explanation Sea water is the most suitable medium for fossilization. Due to rapid sedimentation and preservation. Organisms buried in sea sediments are protected from decay and scavengers.
پاکستان میں، محفوظ علاقے کے صرف ______ زمرے ہیں۔
Answer: 3
Explanation In Pakistan, there are 3 categories of protected areas: 1. National parks 2. Wildlife sanctuaries 3. Game reserves. These areas are designated to conserve biodiversity , with different management approaches depending on the category.
تازہ پانی کی مچھلیاں ______ ہیں؟
Answer: Hyperosmotic
Explanation Freshwater fishes are hyperosmotic . It means their internal body fluids have a higher concentration of solutes compared to the surrounding water. They actively absorb salts and excrete excess water to maintain osmotic balance.
زندہ جانوروں کا مشترکہ اجداد _____ ملین سال پہلے کے درمیان رہ سکتا ہے۔
Answer: 675 - 800
Explanation The common ancestor of living animals likely lived between 675 to 800 million years ago. This period marks the emergence of early multicellular organisms that eventually evolved into modern animals.
خاص سیل میں مائٹوکلی ایکٹو ٹشو میں کچھ دوسرے خلیوں کے مقابلے میں نصف ڈی این اے ہوتا ہے۔ زیر بحث سیل ______ میں سب سے زیادہ امکان ہے؟
Answer: G1
Explanation In the G1 phase , a cell has half the amount of DNA compared to its final doubled state in G2 phase or during mitosis. This is because the DNA has not yet been replicated in G1, and the cell is preparing for DNA synthesis.
گہری مچھلی کی ثقافت کا مطلب کیا ہے؟
Answer: Culture of fish in controlled conditions
Explanation Intensive fish culture involves raising fish in controlled environments with high stocking densities. It requires regular feeding, water management, and monitoring to maximize fish production.
مخصوص خلیات جو لیمن میں "پیپسن" کو چھپاتے ہیں؟
Answer: Chief cells
Explanation Chief cells are specialized cells in the stomach that secrete pepsinogen , the inactive form of pepsin. Pepsinogen is activated into pepsin by stomach acid , aiding in protein digestion.
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