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.
چپٹے اپکلا خلیات کی ایک تہہ جو خون کی نالیوں کے لیمن کو لائن کرتی ہے ______ ہے؟
A. Ectothelium
B. Endothelium
C. Mesothelium
D. None of these
Check answer and explanation
Answer: Endothelium
Explanation The endothelium is a single layer of flattened epithelial cells that lines the inner lumen of blood vessels. It plays a crucial role in regulating vascular functions, including blood flow and exchange of substances.
آپ جانوروں کے کس گروپ میں نسبتاً لمبا سیکم ملنے کی توقع کریں گے؟
A. Herbivores
B. None of these
C. Autotrophs
D. Carnivores
Check answer and explanation
Answer: Herbivores
Explanation Herbivores typically have a longer cecum to aid in the fermentation and breakdown of plant materials. The cecum helps in digesting cellulose and other complex carbohydrates found in plants.
نیند کی لہروں کے چکر کا اندازہ ________ کے ذریعے لگایا جا سکتا ہے؟
A. ECG
B. EEG
C. None of these
D. ECC
Check answer and explanation
Answer: EEG
Explanation Sleep wave cycles are estimated using EEG (Electroencephalogram) to measure brain activity. It records electrical patterns during various sleep stages, including REM and non-REM sleep.
Explanation Amphibians, such as frogs and toads, have a 3-chambered heart. - The three chambers are: 1. Two atria (upper chambers) 2. One ventricle (lower chamber)
جانوروں نے _____ ملین سال پہلے زمین پر اثر ڈالنا شروع کیا۔
A. 460
B. 260
C. 360
D. None of these
Check answer and explanation
Answer: 460
Explanation Around 460 million years ago , animals began to make an impact on land. This marking the beginning of the vertebrate colonization of terrestrial environments. This period corresponds to the Devonian period , when early amphibians and other life forms adapted to land habitats.
Explanation Female Anopheles mosquitoes have piercing and sucking mouthparts adapted for feeding on blood. Their proboscis allows them to pierce the skin and suck blood , which is essential for egg development.
Explanation Rohu fish primarily feeds in the middle column of the pond. It consuming plankton and plant debris. It avoids feeding from the surface or bottom. This making it a mid-column feeder.
مندرجہ ذیل میں سے کون سا انزائمز پر مشتمل ہے جو ہائیڈروجن کو مختلف ذیلی ذخیروں سے آکسیجن میں منتقل کرتا ہے؟
A. Lysosome
B. None of these
C. Peroxisome
D. Vacuole
Check answer and explanation
Answer: Peroxisome
Explanation Peroxisomes contain enzymes like catalase that transfer hydrogen from substrates to oxygen, forming hydrogen peroxide. These organelles are involved in detoxification and fatty acid metabolism.
Explanation Huntington's disease is a genetic neurodegenerative disorder that affects brain function. This leading to cognitive decline and movement disorders . It is caused by a mutation in the HTT gene , resulting in progressive mental and physical deterioration.
Explanation Beggiatoa is a chemosynthetic bacterium that oxidizes hydrogen sulfide to produce energy. It thrives in sulfur-rich environments , playing a role in nutrient cycling.
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