C.

Lesser interspecific competition

Hot spots are areas that are extremely rich in species diversity, have high endemism and are under constant threat. The key criteria for determining a hot spot are a number of endemic species, and degree of threat, which is measured in terms of habitat globally with an approximate area of 1.4%. Among the 25 hot spots, 2 are found in India, ie, Western Ghat and Eastern Himalayas. These areas are particularly rich in floral wealth and endemism not only in flowering plants but also in reptiles, amphibians, swallow-tailed butterflies and some mammals.

C.

Shifting cultivation

Shifting cultivation results into deforestation. Botanical gardens have a collection of living plants for reference. Seed banks store seeds as a source for planting in case, seed reserves elsewhere are destroyed. Field genebanks are a type of biorepository, which preserve genetic material.

A.

Stratification

Stratification is the characteristic of the biological community. Stratification is the vertical layering or the phenomenon of having more than one stratum including formed by different plants/ organisms in the same place. A forest may have 5-7 state including large or canopy trees, medium trees, short trees, shrubs, herbs, ground flora etc. Stratification is useful as it can accommodate a large number of organisms of different types and more efficient use of resources. The animals that occupy such similar strata or ecological niches although geographically separated are called ecological equivalents

A.

Wildlife Safari parks

D.

Himalayan region

B.

Rhinoceros — Kaziranga National Park

Rhinoceros (Rhinoceros unicorns) is an endangered animal and conserved in Kaziranga National Park.