Zoology MCQs - Everyday Science Practice | PakExamPoint
Practise Zoology MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Zoology MCQs and revision practice
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.
وہ انواع جو نسبتاً کم تعداد میں موجود ہیں لیکن فوری طور پر معدوم ہونے کے خطرے میں نہیں ہیں انہیں ________ کہا جاتا ہے؟
A. None of these
B. Vulnerable
C. Rare
D. Both A and B
Check answer and explanation
Answer: Rare
Explanation Rare species exist in low numbers but are not immediately at risk of extinction. They require monitoring and conservation efforts to prevent them from becoming endangered.
سائکون میں ریڈیل نہر بنیادی طور پر ______ کے ذریعہ کھڑی ہے؟
A. None of these
B. Both A and B
C. Choanocyte
D. Porocytes
Check answer and explanation
Answer: Choanocyte
Explanation Choanocytes (collar cells) line the radial canals in Sycon . It help in water circulation and food capture. Porocytes are tubular cells that regulate water entry.
Explanation Eutherian mammals (placental mammals) have an alecithal ovum. This meaning it contains little to no yolk because the embryo receives nutrition from the placenta. In contrast, mesolecithal and polylecithal eggs contain moderate and large amounts of yolk, respectively.
Explanation Instinct is an inborn , automatic behavior that does not require learning , like a spider spinning its web. Unlike habit or trial and error learning, instincts are genetically programmed and present from birth.
جو اجسام عام طور پر آسمان سے زمین پر گرتے ہیں ان کو کیا کہتے ہیں؟
A. None of these
B. Planets
C. Meteorites
D. Both A and B
Check answer and explanation
Answer: Meteorites
Explanation A meteoroid is a small rocky or metallic body in outer space. Bodies that usually fall from the sky to the Earth are called Meteorites . These are small particles from space that enter Earth's atmosphere and survive to land on its surface.
Explanation The peak fishing season in Pakistan typically occurs during winter . Due to favorable water temperatures . This season supports increased fish activity and better catches. This especially in freshwater and coastal fisheries.
ٹے ـ سیکس میں کون سا سیلولر آرگنیل شامل ہونا چاہیے جس کے نتیجے میں خلیات بہت بڑے اور پیچیدہ لپڈز کے ساتھ جمع ہو کر بند ہو جاتے ہیں؟
A. Lysosome
B. Golgi apparatus
C. Endoplasmic reticulum
D. None of these
Check answer and explanation
Answer: Lysosome
Explanation Tay-Sachs disease is caused by a deficiency of the enzyme hexosaminidase A . It is normally found in the lysosome . This deficiency leads to the accumulation of complex lipids in the lysosome, causing cellular dysfunction.
Explanation Human sex hormones, also known as sex steroids, are made up of steroids specifically derived from cholesterol. Steroid Hormones: Sex hormones, lik e testosterone, estrogen, and progesterone , belong to a class of hormones called steroid hormones. Lipid Derived: Steroid hormones are lipids, meaning they are fat-soluble molecules. Cholesterol as Precursor: These hormones are synthesized from cholesterol, a type of lipid.
آبی گیسٹروپڈس کی بنیادی خارج ہونے والی مصنوعات _____ ہے؟
A. Ammonia
B. Urea
C. None of these
D. Uric acid
Check answer and explanation
Answer: Ammonia
Explanation Aquatic gastropods excrete ammonia directly into the water through diffusion, a process called ammonotelism . This method is efficient in water as ammonia is highly soluble and easily diluted.
کس محفوظ علاقے میں انتظامی مداخلت کے ذریعے بنیادی طور پر تحفظ کے لیے انتظام کیا گیا؟
A. Habitat/Species management
B. None of these
C. Strict nature reserves
D. Wilderness area
Check answer and explanation
Answer: Habitat/Species management
Explanation Habitat/Species management involves active intervention to conserve specific species or habitats. Such as through controlled breeding or habitat restoration. This approach helps protect endangered species and ecosystems that require human management for their survival.
Found a mistake? Use “Report correction” in the practice tool or contact us with the question and a supporting source.