Biology : Dynamic Ecosystem
Question 1 :
The distribution of organisms in a community is affected by the biotic factors and abiotic factors. Abiotic factors are the non-living components in the ecosystem such as air, water, soil, temperature and light intensity. Biotic factors are the living components in the ecosystem such as animals and plants. In an ecosystem, the living organisms live together in their non-living environment and function as a unit. This dynamic system starts with species, populations, ecosystems, communities and biosphere.
A species is a group of organisms that look alike and have similar characteristics, share the same roles in an ecosystem and are capable of interbreeding to produce fertile offspring. A population is a group of individuals of a single species living in the same general area. Size of population living in a particular area is the population density. We must know population growth rate to understand population density. By knowing the addition of new individuals in original population in a particular area at a given time we can determine the growth rate. Population growth rate depends on natality and mortality of population. Biotic potential of population is indicated by the inherent birth rate and death rate of an organism. The biotic community is formed by groups of different populations, formed of many species, living in nature as a group. Many kinds of plants and animals, interacting with each other, exist in such a community.
From the movie, we can find a population of tiger in the forest and reserve. Other example would be the population of fish and bird at the sea. Members of a population rely on the same resources, are influenced by similar environmental factors, and are likely to interact and breed with one another like in the movie. A sampling technique is used to study the population size of an organism. A sampling technique involves collecting, counting and making observations on the organism studied. Sampling is done at random and
The distribution of organisms in a community is affected by the biotic factors and abiotic factors. Abiotic factors are the non-living components in the ecosystem such as air, water, soil, temperature and light intensity. Biotic factors are the living components in the ecosystem such as animals and plants. In an ecosystem, the living organisms live together in their non-living environment and function as a unit. This dynamic system starts with species, populations, ecosystems, communities and biosphere.
A species is a group of organisms that look alike and have similar characteristics, share the same roles in an ecosystem and are capable of interbreeding to produce fertile offspring. A population is a group of individuals of a single species living in the same general area. Size of population living in a particular area is the population density. We must know population growth rate to understand population density. By knowing the addition of new individuals in original population in a particular area at a given time we can determine the growth rate. Population growth rate depends on natality and mortality of population. Biotic potential of population is indicated by the inherent birth rate and death rate of an organism. The biotic community is formed by groups of different populations, formed of many species, living in nature as a group. Many kinds of plants and animals, interacting with each other, exist in such a community.
From the movie, we can find a population of tiger in the forest and reserve. Other example would be the population of fish and bird at the sea. Members of a population rely on the same resources, are influenced by similar environmental factors, and are likely to interact and breed with one another like in the movie. A sampling technique is used to study the population size of an organism. A sampling technique involves collecting, counting and making observations on the organism studied. Sampling is done at random and