Beta diversity is diversity
(a) in a community
(b) between communities
(c) in a mountain gradient
(d) on a plain
Which of the following is best method of germplasm conservation ?
(b) Botanical garden
(c) Seed bank
(d) Zoological park
Which one has the largest species variety in India ?
Dust, oolong and brick are varieties of
India is one of the twelve megadiversity countries with ______ of genetic resources of the world.
Which of the following is not an invasive species?
(a) Parthenium hysterophorus
(b) Nelumbo (lotus)
(c) Lantana camara
(d) Eichhornia crassipes
The total number of biodiversity hotspots in the world are
(a) 72 (b) 34 (c) 52 (d) 24.
Which of the following statements is not true?
(a) The biodiversity decreases with increasing altitude.
(b) The biodiversity decreases with increasing pollution.
(c) The fishes show greatest biodiversity among vertebrates.
(d) The biodiversity of bryophytes is greater than that of angiosperms.
One out of the following is not responsible for biodiversity loss.
(a) Alien species invasion
(c) Ex-situ conservation
One of the following statements is incorrect with reference to biodiversity. Identify it.
(a) The areas with very few plant and animal species (low species richness) with no threatened species are called biodiversity hotspots.
(b) Biodiversity increases from higher altitudes to lower altitudes.
(c) Biodiversity decreases from the equator to polar regions.
(d) Depletion in genetic diversity of crop plants is mainly due to the introduction of better varieties with high yield, disease resistance, etc.