Which one of the following is one of the cahracteristics of a biological community?
Stratification
Natality
Mortality
Mortality
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
Mass of living matter at a trophic level in an area at any time is called.
Detritus
Humus
Standing state
Standing state
A collection of plants and seeds having diverse alleles of all the genes of a crop is called
germplasm
gene library
genome
genome
Which one of the following pairs is wrongly matched while the remaining three are correct?
Penicillium - Conidia
Water hyacinth - Runner
Bryophyllum - Leat buds
Bryophyllum - Leat buds
Biodiversity of a geographical region represents
endangered species found in the region
the diversity in the organism living in the region
genetic diversity present in the dominant species of the region
genetic diversity present in the dominant species of the region
Which one of the following is an example of ex- situ conservation?
Wildlife sanctuary
Seed bank
Sacred groves
Sacred groves
Tiger is not a resident, in which one of the following national park?
Ranthambhor
Sunderbans
Gir
Gir
Which of the following plant species would you select for the production of bioethanol?
Brassica
Zea mays
Pongamia
Pongamia
Which one of the following is not observed in biodiversity hot spots?
Endemism
Accelerated species loss
Lesser interspecific competition
Lesser interspecific competition
