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.
ایک ہی وسائل کو استعمال کرنے کے لیے دو یا دو سے زیادہ جانداروں کی کوشش ______؟
A. None of these
B. Kinesis
C. Competition
D. Taxis
Check answer and explanation
Answer: Competition
Explanation Competition occurs when two or more organisms attempt to use the same resource, such as food, territory, or mates. This interaction can limit the availability of resources and affect the survival and reproduction of the organisms involved.
کی افزائش کے لیے بہتے ہوئے پانی کی ضرورت ہے؟ _____
A. Common crap
B. Silver fish
C. Tilapia
D. Grass crap
Check answer and explanation
Answer: Grass crap
Explanation Grass carp require running water for breeding. This environment is crucial for the successful spawning and development of their eggs. As it helps maintain oxygen levels and water quality.
Explanation Placoderms, Archeopteryx, and Therapsids are true fossils representing extinct organisms. **Placoderms:** Ancient armored fish from the Devonian period, well-known for their fossilized remains. **Archeopteryx:** A transitional fossil that shows characteristics of both dinosaurs and birds, marking a key step in avian evolution. **Therapsids:** Synapsids from the Permian and Triassic periods, regarded as ancestors to mammals.
مندرجہ ذیل میں سے کون سی اینڈو میمبرن سسٹم کا حصہ نہیں ہے؟
A. Endoplasmic Reticulum
B. Peroxiosome
C. Mitochondria
D. None of these
Check answer and explanation
Answer: Mitochondria
Explanation The endomembrane system includes organelles like the endoplasmic reticulum, Golgi complex, lysosomes, and vesicles. Mitochondria are not part of this system as they have their own membranes and function independently in energy production.
Explanation Island habitats often have higher rates of extinction. Due to their isolation and vulnerability to environmental changes. Limited resources and smaller populations on islands increase the risk of species loss.
مندرجہ ذیل میں سے کون سا سیل کے گزرنے کو جی ٹو چوکی سے گزر کر مائٹوسس میں متحرک کرتا ہے؟
A. None of these
B. Protein kinase
C. Cyclin
D. MPF
Check answer and explanation
Answer: MPF
Explanation Maturation Promoting Factor (MPF) triggers the cell's passage past the G2 checkpoint into mitosis. MPF is a complex of cyclin and CDK that initiates mitotic events like chromatin condensation and spindle formation.
Explanation Epidermal gills are found in the larval stages of tailed amphibians (such as salamanders and newts). These gills help in respiration before the development of lungs.