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Biology (Objective) (Pages :32)
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61 Name a plant that forms seeds but no fruits?

Ans : Pinus
62 What are Kelps?

Ans : Kelps are large sea weeds
63 Write an example of an epiphyte?

Ans : Vanda
64 Write an example of annuals?

Ans : Wheat; rice
65 Write an example of Hydrophytes?

Ans : Hydrilla; Water lily; Lotus; Water Hyacinth
66 Write an example of Mesophytes?

Ans : Cassia fistula; China Rose; Sunflower
67 Which is the tallest tree?

Ans : Redwood Sequoia
68 The process of developing new and improved varieties of plants?

Ans : Plant breeding
69 The process of removing anther from a bisexual flower?

Ans : Emasculation
70 The central plantation crops Research Institute is in?

Ans : Kasargod
71 Where is the hybrid sugarcane centre situated?

Ans : Coimbatore
72 The pepper research station is in?

Ans : Kannur (Panniyur)
73 The modern techniques adopted for the improvement of plants?

Ans : Hybridisation and mutation
74 What is phagocytosis?

Ans : Engulfing of solid food or foreign particles by the cell
75 Where was IUCN started?

Ans : Switzerland
76 Which is the first link of a food chain?

Ans : Producer or green plants
77 The whole living world on the earth's surface is called?

Ans : Biosphere
78 The biggest flower in the plant kingdom is?

Ans : Rafflesia.
79 What are biotic factors?

Ans : Biotic factors include plants; animals; human beings and all other living organisms
80 What is a protozoa?

Ans : It is unicellular organism
81 The wall of a plant cell is made up of?

Ans : Cellulose
82 What do you know about Fucus?

Ans : Fucus is a large brown seaweed
83 What are Angiosperms?

Ans : They are flowering plants
84 Which is the plant that stores food in its leaves?

Ans : Cabbage
85 What is the name of the disease caused by the lack of iron in plants?

Ans : Chlorosis
86 Which one is commonly known as "Band Silk"?

Ans : Spirogyra
87 What is fertilization?

Ans : It means fusion of the nuclei of male and female gametes
88 Where is National Botanical Garden situated?

Ans : Lucknow
89 Cricket bats are made up of the wood of one tree. What is its name?

Ans : Willow
90 What is the method by which plants absorb mineral salts?

Ans : They absorb mineral salts through osmosis

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