Back to Projects
JOIN WHATSAPP GROUP
Free PSC MCQ 4 Lakhs+
Please Write a Review
Current Affairs 2018 to 2022
PYQ 1200 Q/A Part - 1
PYQ 1200 Q/A Part - 2
PYQ 1200 Q/A Part - 3
PYQ 1200 Q/A Part - 4
PYQ 1200 Q/A Part - 5
Kerala PSC General Science Book Study Materials Page 630
Book's First PageAns: (a) 337. When a cell neither shrinks nor swells when kept in a fluid, then the fluid in the cell in relation to ambient fluid is called: [NDA 1990] (a) Hypertonic (b) Hypotonic (c) Isotonic (d) Hyalotonic Ans: (c) 338. The study of the relation of animals and plants to their surroundings is called: [Intelligence Bureau 1994] (a) Ecology (b) Ethnology (c) Genealogy (d) Iconology Ans: (a) 339. Ants are always seen moving in a line one after another. They trace the path because of the secretion of chemicals called: (a) detectors (b) sex hormones (c) pheromones (d) None of the above Ans: (c) 340. The maximum fixation of solar energy is done by: [Intelligence Bureau 1994] (a) bacteria (b) protozoa (c) fungi (d) green plants Ans: (d) 341. Which of the following animals resembles most to human beings in terms of physical and mental capabilities? (a) Langur (b) Rhesusmonkey (c) Gorilla (d) Chimpanzee Ans: (d) 342. Which of the following have not undergone much .of a change during the process of evolution over millions of years? [CDS 1994] 1) Crocodile 2) Cockroach 3) Horse (a) 1 and 2 (b) 2 and 3 (c) 1 and 3 (d) 1, 2 and 3 Ans: (a) 343. Nitrogen fixation is done by : [IFS 1990] (a) red algae 629