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Name any two biodiversity hot spots in India.
Concept: Loss of Biodiversity
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions
(a) Acrosome
(b) Nucleus
(c) Middle piece
Concept: Gametogenesis
Describe the structure of a nucleosome.
Concept: Packaging of DNA Helix
What is ecological succession?
Concept: Biotic or Ecological Succession
Explain the carbon cycle with the help of a simplified model.
Concept: Biogeochemical Cycles (Nutrient Cycles)
Briefly describe the process of spermatogenesis.
Concept: Gametogenesis
Explain sex determination in human beings.
Concept: Sex Determination
What is ‘biofortification’?
Concept: Plant Breeding
What is the composition of biogas?
Concept: Microbes in Energy Generation
Construct an age pyramid which reflects an expanding growth status of human population.
Concept: Population
Define ‘Ecological succession’.
Concept: Biotic or Ecological Succession
What do you mean by pioneer species?
Concept: Biotic or Ecological Succession
Mention the functions of Uterus in the human female reproductive system.
Concept: The Female Reproductive System
Enlist the characteristics of genetic code.
Concept: Protein Synthesis
Define organic evolution.
Concept: Theories of Origin of Life
Objection to Darwin's theory of natural selection.
Concept: Darwin’s Theory of Natural Selection (Darwinism)
What is transpiration?
Concept: Structure of Stomatal Apparatus
Explain factors affecting water absorption.
Concept: Water Potential (ψ)
Give the full form of IAA.
Concept: Plant Hormones >> Auxins
Match the column A with B
| A | B | |
| i. | Epinasty of flower | GA3 |
| ii. | Natural auxin | NAA |
| iii. | Flowering in Litchi | IAA |
| iv. | Bolting of Beet | Ethylene |
Concept: Plant Hormones
