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Which one of the following plants does not show plasticity?
Given below are two statements : Statement I : Cleistogamous flowers are invariably autogamous. Statement II : Cleistogamy is disadvantageous as there is no chance for cross pollination. In the light of the above statements, choose the correct answer from the options given below :
The girdling experiment shows that phloem is the tissue responsible for translocation of food; and that transport takes place in one direction i.e. towards the root.
Identify the incorrect statement related to Pollination:
Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants:
Exoskeleton of arthropods is composed of :
Read the following statements and choose the set of correct statements : (a) Euchromatin is loosely packed chromatin (b) Heterochromatin is transcriptionally active (c) Histone octomer is wrapped by negatively charged DNA in nucleosome (d) Histones are rich in lysine and arginine (e) A typical nucleosome contains 400 bp of DNA helix. Choose the correct answer from the options given below :
The flowers are Zygomorphic in: (a) Mustard (b) Gulmohar (c) Cassia (d) Datura (e) Chilly Choose the correct answer from the options given below:
Which one of the following statements cannot be connected to Predation?
What amount of energy is released from glucose during lactic acid fermentation?
Which of the following are regarded as major causes of biodiversity loss? A: Over exploitation B: Co-extinction C: Mutation D: Habitat loss and fragmentation E: Migration
Tropical regions show greatest level of species richness because: A: Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification. B: Tropical environments are more seasonal. C: More solar energy is available in tropics. D: Constant environments promote niche specialization. E: Tropical environments are constant and predictable.
The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called:
The list of endangered species was released by which of the following organizations?
Match the items in List-I with their correct descriptions in List-II: List-I: (A) The Evil Quartet, (B) Ex-situ, (C) Lantana camara, (D) Dodo List-II: (I) Cryopreservation, (II) Alien species invasion, (III) Causes of biodiversity losses, (IV) Extinction
Which one of the following is an example of ex-situ conservation?
Which of the following is not a method of ex situ conservation?
Taxon is a unit of
The book Genera Plantarum was written by...
Which of the following is less general in characters as compared to Genus?