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.

Continue your revision with related topics: 100 Most Repeated MCQs of EDS PDF MCQs, Alloy MCQs, Atmosphere MCQs, Basics of Every Day Science EDS MCQs, Biology MCQs, Botany MCQs, Branch of Science MCQs, Cell MCQs.

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Zoology: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

411. In which animal does blood flow from the pulmocutaneous circulation to the heart before circulating through the rest of the body?

کس جانور میں خون جسم کے باقی حصوں میں گردش کرنے سے پہلے پلموکیوٹینیئس گردش سے دل تک پہنچتا ہے؟

Check answer and explanation

Answer: Frog

Explanation In frogs , blood from the pulmocutaneous circulation (lungs and skin) returns to the heart before being pumped to the rest of the body. This circulatory pathway helps frogs adapt to both aquatic and terrestrial environments.

412. Which area occupied by an animal or group of animals, defended against member of same species?

وہ کون سا علاقہ ہے جس پر کسی جانور یا جانوروں کے گروہ کا قبضہ ہے، جس کا دفاع ایک ہی نوع کے رکن کے خلاف کیا گیا ہے؟

Check answer and explanation

Answer: Territory

Explanation A territory is an area occupied and actively defended by an animal or a group of animals against members of the same species. It is used for activities like mating, feeding, and raising offspring. It ensuring exclusive access to resources.

413. Neural gland is main excretory organ found in ______?

اعصابی غدود کیا مرکزی اخراج کا عضو ______ میں پایا جاتا ہے؟

Check answer and explanation

Answer: Herdmania

Explanation The neural gland is the main excretory organ in Herdmania , a type of tunicate (urochordate). It helps in osmoregulation and excretion by filtering waste from the body fluids.

414. Which of the following is not a density dependent factor?

مندرجہ ذیل میں سے کون سا کثافت پر منحصر عنصر نہیں ہے؟

Check answer and explanation

Answer: Drought

Explanation Drought is not a density-dependent factor because it affects populations regardless of their size. Density-dependent factors (like predation, parasitism, and disease ) have greater effects as population density increases.

415. Who proposed that membranes are a phospholipid bilayer between two layers of hydrophilic proteins?

کس نے تجویز کیا کہ جھلی ہائیڈرو فیلک پروٹین کی دو تہوں کے درمیان فاسفولیپڈ بائلیئر ہیں؟

Check answer and explanation

Answer: H. Davson and J. Danielli

Explanation Hugh Davson and James Danielli proposed the Davson–Danielli model in 1935 . It described cell membranes as consisting of a phospholipid bilayer sandwiched between two layers of globular proteins. This model was also known as the paucimolecular model . In 1972 , S. Singer and G. Nicolson proposed the fluid mosaic model . It described cell membranes as consisting of a phospholipid bilayer with embedded proteins, cholesterol, and carbohydrates. This model has been proven to be true.

416. Fish feed: Required _____ percentage of mineral/vitamin premix?

مچھلی کی خوراک: منرل/وٹامن پریمکس کا _____ فیصد درکار ہے؟

Check answer and explanation

Answer: 2-3%

Explanation Fish feed requires a small amount of mineral/vitamin premix. It typically around 2-3% of the total feed composition. This helps ensure that fish get the necessary nutrients for growth and health without over-supplying.

417. The primary germ layer that gives rise to digestive glands is ______?

بنیادی جراثیم کی پرت جو ہاضمہ غدود کو جنم دیتی ہے وہ ______ ہے؟

Check answer and explanation

Answer: Endoderm

Explanation Endoderm forms the lining of the digestive tract and its associated glands , such as the liver and pancreas. It also gives rise to the respiratory system.

418. Basal ends of hair receptors have ______ axonic fibers.

ہیئر ریسیپٹرز کے بیسل سروں میں ______ محوری ریشے ہوتے ہیں۔

Check answer and explanation

Answer: VII-IX

Explanation The basal ends of hair receptors in fish and other vertebrates have VII-IX axonic fibers. It correspond to the cranial nerves. These fibers transmit sensory information related to hearing and balance to the brain.

419. In World’s total aquaculture production No. 1 fish group is ______?

دنیا کی کل آبی زراعت کی پیداوار میں نمبر 1 مچھلی کا گروپ ______ ہے؟

Check answer and explanation

Answer: Carps

Explanation Carps are the number one fish group in global aquaculture production. It making up a significant portion of farmed fish. They are widely farmed in Asia . It particularly in China . Due to their adaptability to various farming systems .

420. Which of the following takes place in animals only?

مندرجہ ذیل میں سے کون صرف جانوروں میں ہوتا ہے؟

Check answer and explanation

Answer: Ethological isolation

Explanation Ethological isolation (also called behavioral isolation ) occurs only in animals due to differences in mating behaviors , such as courtship rituals. Mechanical isolation can occur in both animals and plants due to structural differences preventing mating or pollination.

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