Study of plant population density by quadrat method
 1) What is plant population density? The number of individuals of the species in any unit area at a given time. The degree of uniformity of the occurrence of individuals of a species within a plant community. A sample plot of a specific size used for the study of population. Total number of species in a sampling quadrat.

 2) Which is correct to calculate plant population density? Density=(Total no.of individuals of the species in all the sampling unit)/(Total number of sampling units employed for the study)*100 Density=(Total number of sampling units employed for the study)/(Total no.of individuals of the species in all the sampling unit) Density=(Total number of sampling units employed for the study)/(Number of sampling units in which the species occurs)*100 Density=(Total no.of individuals of the species in all the sampling unit )/(Total number of sampling units studied )

 3) An ecologist divided a plot into 8 quadrats and studied the density of a particular species. He found that the total number of species occurring in all the sampling units was 58. According to his measurements, what was the density of the specific species? 8 8.25 7.25 6.4

 4) Why is the quadrat method used for calculating plant population density for extensive habitats? It is possible to count all the individuals in a population using quadrat method. Counting all individuals in a population is not possible for extensive habitats. Low cost. Quadrat method has no rules for counting plants.

 5) What is the definition for population? A population is a group of individuals of the same species which inhabits a particular space at a particular time. A population is a group of individuals of different species which inhabit a particular space at a particular time. A population is a group of all the species present in a community. A population is a group of individuals having different characteristics.

 6) Which among the following statements is not true as related to population? A community consists of many populations of different species living in the same location at the same time. The number of individuals in a population never remains constant. Number of individuals may increase or decrease due to many factors like birth rate, death rate and migration. The number of individuals in a population remains constant.

 7) The quadrat method is used to sample __________. Sessile organisms. Mobile organisms. Birds. Fish.

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