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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مچھلی کے تالاب میں بیماریوں کی بڑی وجہ ______ ہے؟
Answer: Poor environmental/management conditions
Explanation Poor water quality, overcrowding, and inadequate feeding are major contributors to diseases in fish ponds. Proper management ensures a healthy environment , reducing stress and disease risks for fish.
سبز کچھی کی انکیوبیشن کی مدت ______ ہے؟
Answer: 40 to 60 days
Explanation Green turtle eggs typically hatch within 40 to 60 days . It depending on temperature and environmental conditions. Warmer temperatures may speed up incubation, while cooler temperatures may slow it down.
چھوٹا برانن میں ابتدائی درار _____ ہے؟
Answer: Meroblastic
Explanation Meroblastic cleavage occurs in the chick embryo because of the large amount of yolk , It prevents complete division of the egg. The cleavage is partial. It occurs only in the blastodisc , not throughout the entire egg.
مرجان ______ فیلم کے ارکان ہیں؟
Answer: Cnidaria
Explanation Corals belong to the phylum Cnidaria . It is characterized by their radial symmetry and stinging cells (cnidocytes). They form colonies and build reefs through calcium carbonate deposition.
ایک ہی پرجاتیوں کے افراد کے مابین کیمیائی اشاروں کو _____ کہا جاتا ہے؟
Answer: Pheromones
Explanation Pheromones are chemical signals released by an organism to communicate with others of the same species. They play roles in mating, territory marking, and social behavior.
وہ جانور جو پانی اور خشک سطح پر رہتے ہیں اسے _____ کہا جاتا ہے؟
Answer: Amphibian
Explanation Amphibians can live both in water and on land (e.g., frogs, salamanders). They typically begin life in water and later adapt to live on land .
فعال استثنیٰ ______ کے ذریعہ حوصلہ افزائی کی جاتی ہے؟
Answer: Infection
Explanation Active immunity is developed when the body’s immune system responds to an infection by producing its own antibodies. Passive immunity occurs through injection or transfer of antibodies, but active immunity requires antigen exposure.
Answer: Nitrogen
Explanation Cyanobacteria are the only diazotrophs (nitrogen-fixing organisms) That produces oxygen as a by-product of the photosynthetic process, and which must negotiate the inevitable presence of molecular oxygen with an essentially anaerobic enzyme.
جب لاروا بالغ حالت سے زیادہ ترقی یافتہ ہوتا ہے تو ، اسے ______ کے نام سے جانا جاتا ہے؟
Answer: Axolotl larva
Explanation Axolotl larva is an example of neoteny , where the larva remains more developed and may reach reproductive maturity without transforming into an adult. This occurs in some amphibians, like the Axolotl (Ambystoma mexicanum) , which retains larval traits throughout life.
مچھلی کی کھاد میں این اور پی کا فیصد ______ ہے؟
Answer: 5-7%
Explanation Fish manure typically contains about 5-7% nitrogen and phosphorus . These nutrients are vital for promoting plant growth and improving soil quality.
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