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.
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Answer: Urial
Explanation Urial males have large horns, curling outwards from the top of the head turning in to end somewhere behind the head; females have shorter, compressed horns. The horns of the males are up to 100 cm (39 in) long. The shoulder height of an adult male urial is between 80 and 90 cm (31 and 35 in).
ایم پی ایف کا سائکلن جزو کس مرحلے کے آخر میں تباہ ہو جاتا ہے؟
Answer: M
Explanation The cyclin component of MPF is destroyed toward the end of the M phase , specifically during anaphase . This degradation helps in regulating the exit from mitosis and ensures the cell progresses to the next cycle phase.
دیمک کا تعلق _______ سے ہے؟
Answer: Isoptera
Explanation Termites belong to the order Isoptera . They includes social insects with a caste system. They are known for their role in decomposing plant material and building complex colonies.
موتی ______ نامیاتی مادے پر مشتمل ہوتا ہے۔
Answer: 3.5-5.9%
Explanation Pearls typically comprise 3.5-5.9% organic matter, primarily conchiolin . This organic matrix binds the calcium carbonate crystals , giving pearls their unique structure.
اینٹاموبا ہسٹولیٹیکا کا انفیکٹو مرحلہ ______ ہے؟
Answer: Trophozoite
Explanation The trophozoite stage of Entamoeba histolytica is the active, feeding, and disease-causing stage found in the host’s intestines. However, the infective stage is actually the mature cyst . It is ingested through contaminated food or water and then transforms into trophozoites in the intestine.
ڈی این اے سے وابستہ پائے جانے والے آئسومرز کی قسم _____ ہے؟
Answer: Two
Explanation DNA exhibits structural isomerism, mainly in the form of tautomeric isomers (keto-enol forms) and optical isomers in nucleotide bases. These isomers affect base pairing and hydrogen bonding, influencing DNA stability and replication.
ایک انفرادی حیاتیات کی زندگی کے دوران، ان میں سے کون سا زیادہ امکان ہے کہ وہ اس کے ماحول میں ہونے والی تبدیلیوں کا مناسب طریقے سے جواب دینے میں مدد کرے؟
Answer: Change in gene expression
Explanation During an organism's lifetime , changes in gene expression enable it to adapt to environmental changes without altering genetic makeup. This process allows specific genes to be activated or suppressed in response to external stimuli.
شہد کی مکھیوں میں واقفیت کی پرواز کا مطلب ______ ہے؟
Answer: Flight from nest to environment
Explanation Orientation flight in bees is when they leave the nest to familiarize themselves with their surroundings. This helps them navigate and locate their hive after foraging.
تخمینہ جو سیل کی سطح کے رقبے کو بڑھاتا ہے ______ ہے؟
Answer: Microvilli
Explanation Microvilli are small projections on the cell surface that increase the surface area for absorption. They are commonly found in cells of the intestinal lining and kidney tubules.
Answer: Hypothalamus
Explanation The hypothalamus monitors nutrient levels and energy balance. It controls hunger and satiety centers , regulating food intake. Cerebellum is for coordination , and pineal gland regulates circadian rhythms , not feeding. Last updated question 25 feb 2026
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