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
221. Mesophyll tissue is well differentiated into spongy tissue and palisade tissue in
- Dicot leaves
- Ophytic stem
- Hydrophytic stem
- Monocot leaves
222. Lateral meristem is responsible for
- Growth in parenchyma
- Growth in thickness
- Growth in cortex
- Growth in length
223. As a tree grows older, which increases more rapidly in thickness?
- Sapwood
- Cortex
- Phloem
- Heartwood
224. What is the other name for cork tissue?
- Phellogen
- Phelloderm
- Phellem
- Periderm
225. Commercial cork is obtained from the species of
- Berberis
- Quercus
- Salix
- Betula
226. The cross-section of a trunk of a tree showed 50 annual rings. The age of tree is
- 50 years
- 50 months
- 100 years
- 25 years
227. Trees at seashore do not have annual rings because
- There is climatic variation
- There is no marked climatic variation
- There is enough moisture in the atmosphere
- Soil is sandy
228. Grafting is not possible in monocots because they
- Have scattered vascular bundles
- Have parallel venation
- Are herbaceous
- Lack cambium
229. A tissue is a
- A group of separate organs that are coordinated in their activities
- Group of similar cells that function together in a specialized activity
- Layer of cells surrounding an organ
- Sheet of cells, one layer thick
230. Which type of tissue forms the inner lining of a blood vessel?
- Epithelial
- Connective
- Muscle
- Nervous