PPSC ESE SCIENCE PAST PAPER 15-02-2026
پیپر میں جانے سے
پہلے یہ سوالات و سلیبس ایک بار ضرور پڑھ کر جائیں
PPSC 25
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
لفظ \"نفسیات\" کس زبان سے ماخوذ ہے؟
- Greek
- Latin
- Italian
- None of these
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Explanation
The word "psychology" is derived from the Greek language.
Psyche means “life” or “soul”. Logia means “the study of”.
In short, Psychology is the science entailing the study of the mind.
It includes the study of Behaviour, feelings, consciousness, and the unconscious mind.
Last updated question 17-02-2026
کم از کم رقبہ وہ رقبہ ہے جہاں کسی نوع کی موجودگی ہوتی ہے؟
- Representative
- Constant
- Decline
- Increase dense
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Explanation
Minimal area is the smallest area that can support all species of a community.
It ensures a representative sample of species composition.
Used in ecology to study plant communities and species diversity.
Smaller than this area, some species may be missed.
Helps in making accurate ecological surveys and vegetation mapping.
Last updated question 17-02-2026
- Validity
- Reliability
- Objectivity
- Differentiation
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Explanation
If the scoring of a test is not affected by external factors, such as the bias or judgment of the grader, it is called objectivity
Last updated question 17-02-2026
پاکستان کا قومی ممالیہ کون سا ہے؟
- Markhor
- Snow Leopard
- Indus Dolphin
- Chinkara
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Explanation
The Markhor is the national mammal of Pakistan.
It is a wild goat species found in northern mountainous regions.
It has distinctive twisted horns.
The animal is endangered due to hunting.
Scientific classification
- Kingdom: Animalia
- Phylum: Chordata
- Class: Mammalia
- Order: Artiodactyla
- Family: Bovidae
- Subfamily: Caprinae
- Genus: Capra
- Species: C. falconeri
Last updated question 17-02-2026
ہمنگ برڈ کی عارضی غیر فعالیت تاکہ توانائی بچائی جا سکے، کیا کہلاتی ہے؟
- Hibernation
- Torpor
- Aestivation
- Migration
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Explanation
- Torpor is a short-term state of reduced metabolic activity.
- Hummingbirds use it to conserve energy at night.
- Their body temperature drops significantly.
- It helps them survive food scarcity.
- It is different from long-term hibernation.
Last updated question 17-02-2026
مچھلیوں میں بنیادی لمفائیڈ عضو کون سا ہے؟
- Spleen and liver
- Kidney and thymus
- Gills and heart
- Pancreas and intestine
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Explanation
- The primary lymphoid organs in teleost fishes are the thymus and the anterior kidney (or pronephros).
- In fish, the kidney acts as a major hematopoietic organ.
- The thymus helps in T-cell development.
- These organs support immunity.
- Fish lack bone marrow like mammals.
- Diploid sporophyte
- Haploid gametophyte
- Embryo stage
- Spore case
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Explanation
- Prothallus is the gametophyte stage in ferns.
- It develops from a spore.
- It is haploid in nature.
- It produces male and female gametes.
- Fertilization occurs on the prothallus.
- Structure: It is a small, typically heart-shaped (cordate), and flat thallus.
روشنی میں فوتوسنتھیسز زیادہ تر کس کے ذریعے ہوتا ہے؟
- C4 plants
- CAM plants
- C3 plants
- Algae
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Explanation
Photosynthesis in light is mainly performed by C3 plants
They form a 3-carbon compound (3-PGA).
They constitute approximately 95% of the world's total plant biomass.
These plants include the vast majority of trees, shrubs, and major food crops such as rice, wheat, and soybeans.
انجیوسپرمز کس دور میں پیدا ہوئے؟
- Jurassic period
- Triassic period
- Cretaceous period
- Permian period
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Explanation
- Angiosperms are flowering plants.
- They first appeared in the Cretaceous period.
- This was about 145–66 million years ago.
- They diversified rapidly.
- Today they dominate plant life on Earth.
قدرتی طور پر پائے جانے والے آکسن کس شکل میں ملتے ہیں؟
- Indole-3-acetic acid
- Gibberellic acid
- Cytokinin
- Ethylene
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Explanation
- Naturally occurring auxin is primarily found in the form of Indole-3-acetic acid (IAA),
- It regulates plant growth.
- It promotes cell elongation.
- Auxins influence apical dominance.
Last updated question 17-02-2026
