GS Biology Questions and Answers
GS Biology questions with answers enhance your general science knowledge, especially for exams like SSC, Railways, and UPSC. Biology is an important branch of general science that deals with the study of life, organisms, and their vital processes. These general science questions and answers cover topics such as cells, human anatomy, genetics, and ecology — frequently asked in competitive exams. Practicing these questions helps you understand biological concepts clearly and boosts your score in the general awareness section. Strengthen your science fundamentals and prepare effectively for multiple-choice questions in upcoming tests.
GS Biology
Showing 10 of
357 questions
341. Ureotelic animals are those that eliminate nitrogenous wastes predominantly in the form of
- Uric acid
- Ammonia
- Amino acids
- Urea
342. Animal species living in chronic shortage of water generally excrete uric acid as the principal nitrogenous waste product because
- Uric acid can be stored in the body for long periods
- Uric acid is highly soluble in water and easily eliminated
- The kidneys are unable to convert uric acid into urea
- Enzymes for urea formation are absent
343. Which one of the following sets of animals produces the same substance as their chief excretory product?
- Cockroach, camel and lizard
- Man, dog and camel
- Amoeba, ant and antelope
- Fowl, fish and frog
344. A freshwater fish must continuously
- Acquire water and get rid of salt
- Get rid of both water and salt
- Acquire both water and salt
- Get rid of water and acquire salt
345. A nephridium of an earthworm drains materials directly from the
- Gut
- Coelom
- Lymph
- Blood
346. The basic unit of a vertebrate kidney is the
- Ureter
- Nephron
- Malpighian tubule
- Islets of Langerhans
347. Nephrons are connected with
- Respiratory system
- Nervous system
- Circulatory system
- Excretory system
348. Which of the following has no blood but respires?
- Earthworm
- Hydra
- Cockroach
- Fish
349. Which type of respiratory organs are present in spiders and scorpions?
- Book lungs
- Gill books
- Gills
- Lungs
350. The functional respiratory organ of a fully formed tadpole is the
- Skin
- Lung
- Gill
- Air bladder