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Which one of the following is not a method of in situ conservation of biodiversity?
The Earth Summit held in Rio de Janeiro in 1992 was called:
In the following, in each set, a conservation approach and an example of a method of conservation are given: (a) In situ conservation — Biosphere Reserve (b) Ex situ conservation — Wildlife Safari Park (c) In situ conservation — Seed bank (d) Ex situ conservation — National park Select the correctly matched sets:
According to the observations of Alexander von Humboldt, what is the relationship between species richness and the area explored?
According to Robert May, global species diversity is about:
Which of the following regions of the globe exhibits the highest species diversity?
Match the organisms in List-I with their respective families in List-II: List-I: (a) Man, (b) Housefly, (c) Mango, (d) Wheat List-II: (i) Anacardiaceae, (ii) Poaceae, (iii) Muscidae, (iv) Hominidae
The World Summit on sustainable development held in 2002 in Johannesburg, South Africa pledged for:
Identify the correct set of statements : (a) The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea (b) Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin (c) Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves (d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration (e) Subaerially growing stems in grasses and strawberry help in vegetative propagation Choose the correct answer from the options given below :
Which one of the following is not formed when acetone reacts with 2-pentanone in the presence of dilute NaOH followed by heating?
The product formed from the following reaction sequence is
Given below are two statements : Statement I : The primary $CO_2$ acceptor in $C_4$ plants is phosphoenolpyruvate and is found in the mesophyll cells. Statement II : Mesophyll cells of $C_4$ plants lack RuBisCo enzyme. In the light of the above statements, choose the correct answer from the options given below:
Hydrocolloid carrageen is obtained from:
Which of the following is incorrectly matched?
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for:
Given below are two statements: Statement I: Decomposition is a process in which the detritus is degraded into simpler substances by microbes. Statement II: Decomposition is faster if the detritus is rich in lignin and chitin. In the light of the above statements, choose the correct answer from the options given below:
Which one of the following never occurs during mitotic cell division?
Give the correct descending order of organisms with reference to their estimated number found in the Amazon forest.
Endemism refers to: