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Question:- When the cut stems of two different plants are joined together in such a way that the two stems join and grow as a single plant, it is called: A. Cutting B. Layering C. Grafting D. None of the above
Answer:- C
Question:- The transfer of pollen grains the anther of a stamen to the stigma of a carpel is called: A. Germination B. Pollination C. Fertilisation D. Tissue culture
Answer:- B
Question:- Those organs which have same basic structure but different functions are called: A. Analogous organs B. Speciation C. Fossils D. Homologous organs
Answer:- C
Question:- Those organs which have different basic structure but have similar appearance and perform similar functions are called: A. Fossils B. Analogous organs C. Homologous organs D. Speciation
Answer:- B
Question:- What are those animals called which eat both plants and animals? A. Omnivores B. Herbivores C. Carnivores D. Decomposers
Answer:- A
Question:- What is the shedding of flowers, leaves and fruits followed by formation of scar tissue in a plant called? A. Abscission B. Abscisic acid C. Deciduous D. Mitosis
Answer:- A
Question:- A group of glands which produce various hormones is called: A. Respiratory system B. Excretion C. Endocrine system D. Central nervous system
Answer:- C
Question:- Organic constituents of soil formed by complete or partial decomposition of plant and animal material is called: A. Fauna B. Humus C. Fossil D. Compost
Answer:- B
Question:- The complex feeding relationships within a community is called: A. Food chain B. Food web C. Trophic level D. All of the above
Answer:- B
Question:- What are heterotrophs, mostly bacteria and fungi, when obtain food by breaking down substances in dead protoplasm are called: A. Omnivores B. Herbivores C. Decomposers D. Carnivores
Answer:- C
Question:- What is the act of supplying water to a field through artificial means called? A. Irrigation B. Insecticide C. Fungicide D. Monoculture
Answer:- A
Question:- What is ploughing and cultivating the land called? A. Irrigation B. Domestication C. Tilling D. Weeding
Answer:- C
Question:- In photosynthesis dark reaction, is called so because- A. It occurs in dark. B. It does not require light energy. C. It cannot occur during daytime. D. It occurs more rapidly at night.
Answer:- B
Question:- Rate of photosynthesis does not depend upon: A. Quality of light B. Intensity of Light C. Duration of Light D. Temperature
Answer:- C