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Question:- Plants absorb dissolved nitrates from soil and convert them into A. free nitrogen B. urea C. ammonia D. proteins
Answer:- Option A
Question:- Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with A. all gymnosperms, except conifers B. only angiosperms C. only conifers D. angiosperms and all gymnosperms except conifers
Answer:- Option C
Question:- One of the following is not a function of bones. A. Place for muscle attachment B. Protection of vital organs C. Secretion of hormones for calcium regulation in blood and bones D. Production of blood corpuscles
Answer:- Option C
Question:- Plants absorb most part of water needed by them through their A. embryonic zone B. growing point C. root hairs D. zone of elongation
Answer:- Option C
Question:- Photo-oxidation is A. photorespiration B. photolysis C. light and oxygen induced breakdown D. All of the above
Answer:- Option D
Question:- Process of cell division can take place by A. heterosis B. fusion C. mitosis D. None of these
Answer:- Option C
Question:- Most highly intelligent mammals are A. whales B. dolphins C. elephants D. kangaroos
Answer:- Option B
Question:- Plant development is influenced by A. quality of light only B. quality and quantity of light C. quality and duration of light D. quality, quantity and duration of light
Answer:- Option D
Question:- Prokaryotic cells lack A. nucleolus B. nuclear membrane C. membrane bound by organelles D. All of these
Answer:- Option D
Question:- Photosynthesis takes place faster in A. yellow light B. white light C. red light D. darkness
Answer:- Option B
Question:- Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by A. Robert Hooke B. Robert Brown C. Rudolf Virchow D. Theodore Schwann
Answer:- Option B
Question:- Primary phloem develops from A. lateral meristem B. protoderm C. extrastelar cambium D. provascular tissue
Answer:- Option D
Question:- Other than spreading malaria, anopheles mosquitoes are also vectors of A. dengue fever B. filariasis C. encephalitis D. yellow fever
Answer:- Option B
Question:- Plants that grow in saline water are called A. halophytes B. hydrophytes C. mesophytes D. thallophytes
Answer:- Option A