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
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357 questions
251. In human, increased heat production is achieved most rapidly by increase the activity of the
- sweat gland
- Liver
- Skeletal muscle
- Brain
252. Smooth muscle fibers are
- spindle-shaped, unbranched, non striated, multinucleate and involuntary
- spindle-shaped, unbranched, unstriated, uninucleate and involuntary
- Cylindrical, striated, unbranched, multinucleate and voluntary
- Cylindrical, unbranched, non-striated, multinucleate and involuntary
253. Muscles, which are immune to fatigue, are
- Unstriped muscles
- Cardiac muscles
- Jaw muscles
- Skeleton muscles
254. Schwann cells and nodes of Ranvier are found in
- Neurons
- Chondroblasts
- Osteoblasts
- Gland cells
255. Afferent nerve fiber carries impulses from
- Effectors to central nervous system
- Receptor to central nervous system
- Central nervous system to muscle
- Central nervous system to receptors
257. Cardiac muscle is made of branched fibers that are
- Nonstriated and under voluntary control
- Striated and not under voluntary control
- Nonstriated and not under voluntary control
- Striated and under voluntary control
258. Which of the following tissues in mammals show the least capacity for regeneration?
- Endothelium of blood vessels
- Skeletal tissue of long bones
- Nervous tissue of brain
- Epithelial tissue
259. Nerve impulses are conducted towards the cell body by
- Axons
- Ganglia
- Dendrites
- Neurons
260. The study of fish culture is called
- Ophiology
- Ichthyology
- Herpetology
- Pisciculture