Answer:
Comparative and experimental investigations are investigations which are performed to address the questions of natural phenomena. Both of these investigations follow scientific procedures.
Comparative investigation refers to the type of scientific investigation, in which two or more object, organisms or features are compared under different conditions such as temperatures, times of year and locations. In this investigation process control group is not used. It is a comparison based study. Experimental investigation refers to the investigation in which the variables can be changed and manipulated in order to determine the effect of such condition only on a single object, feature or organism. In this investigation is a control group is used. Independent and dependent variables are used in both type of investigations. Experimental investigation derives the relation of two or more variables. Independent variables are those, which can be changed and manipulated in an experiment to show it's effect on the dependent variable.
On the basis of the above information, the similarities and differences between the comparative and experimental investigation can be described as follows:
Experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship.: This describes the difference between the two investigations.
Comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled.:This describes the difference between the two investigations.
Both experimental investigations and comparative investigations are designed to answer scientific questions.:This describes the similarity between the two investigations.
The population of Bengal tigers can be monitored by tagging and counting of foot prints.
The method of conserving tigers is in-situ conservation.
<h3>What is population?</h3>
Population is the total number of organisms living in a particular area and interacting with their environment at specific time.
Endangered species are species of organisms that can easily be affected by predators and are at the point of extinction.
Therefore, population of Bengal tigers can be monitored by tagging and counting of foot prints.
The method of conserving tigers is in-situ conservation.
Learn more about population below.
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Forest biome: It gives us medicinal plants, woods for commercial purpose. Forests provides us rubber and fibers that is very important for the industries for making various products. They also contribute to perform ecological functions such as carbon storage, nutrient cycling, water and air purification. It also provides habitat to the wildlife.
Freshwater biome: We use fresh water for drinking water, irrigation, sanitation systems, and in industrial factories. Water used from groundwater, rivers and lakes is regained by rain and snowfall.
Marine biome: It serves huge amount of oxygen into the environment and absorbs the atmospheric carbon dioxide.
As a result of the activity of human there is a significant decrease in the number of trees. The products now used are synthetically made which were made up of natural fibers previously. The water source such as rivers, lakes, and ponds are polluted due to which many water borne diseases are increasing day by day. The accumulation of waste which are found in marine biome are reducing the number of flora present inside marine ecosystem.
