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: Paracentric inversion
Explanation If an inversion does not include the centromere, it's known as a paracentric inversion.
مچھلی میں وائرل بیماریاں کس بیماری کے زمرے میں آتی ہیں؟
Answer: Infectious diseases
Explanation Viral diseases in fish are caused by pathogens like viruses . This making them infectious . They can spread from one fish to another through water, contact, or vectors.
گرمیوں یا خشک موسم کے دوران جانوروں میں غیر فعالیت کی حالت _____ کہلاتی ہے؟
Answer: Aestivation
Explanation The state of inactivity in animals during summer or dry season is called aestivation (or estivation). Purpose: To conserve energy and prevent water loss during arid, high-temperature conditions. Duration: Lasts for the duration of the hot/dry season, ranging from weeks to months, or even years in some cases.
مندرجہ ذیل میں سے کون سے جانداروں کی آبادی ایس کے سائز کے منحنی خطوط کی پیروی کرتی ہے؟
Answer: Yeast
Explanation Yeast populations exhibit S-shaped ( sigmoidal ) growth curves. It is characterized by a lag phase , exponential growth , and a stationary phase. This occurs as resources become limited and environmental resistance sets in, stabilizing the population.
Answer: Brood stock
Explanation Brood stock fish are parent fish from which fry and fingerlings are produced. ... production mainly depends on healthy, good quality mature brood stocks.
بائی پولر ڈس آرڈر شیزوفرینیا سے اس _______ میں مختلف ہے؟
Answer: Schizophrenia results in hallucinations
Explanation Schizophrenia is characterized by symptoms like hallucinations, delusions, and disorganized thinking. Bipolar disorder involves alternating manic and depressive states, without hallucinations as a primary feature.
رواداری کا قانون ______ کی طرف سے تیار کیا گیا تھا؟
Answer: V.E. Shelford
Explanation V.E. Shelford developed the Law of Toleration. It states that an organism can only survive and reproduce within certain environmental conditions or ranges. This concept emphasizes the limits of tolerance to factors like temperature, humidity, and salinity for organisms.
Answer: 16
Explanation The frequency of allele a is 0.4 . So the frequency of homozygous aa is calculated by squaring 0.4 ( 0.4² = 0.16 ). This gives 16% of the population being homozygous for allele a.
زمین کی سطح تک سولر فلکس کا کتنا فیصد پہنچتا ہے؟
Answer: 48%
Explanation About 48% of the solar flux reaches the Earth's surface after being absorbed, scattered, or reflected by the atmosphere. The remaining energy is absorbed by the atmosphere or reflected back into space.
خوشبو کا تعلق ______ سے ہے؟
Answer: Conversion of androgens to estrogens
Explanation Aromatization is the process where androgens are converted into estrogens by the enzyme aromatase. This process plays a crucial role in regulating reproductive functions , especially in females .
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