Question

Please solve the above quiz?

Answer 1

Autecology is the:a. Relation of a population to its environmentb. Relation of an individual to its environmentc. Relation of a community to its environmentd. Relation of a biome to its environmentEcotone is:a. A polluted areab. The bottom of a lakec. A zone of transition between two communitiesd. A zone of developing communityBiosphere is:a. a component in the ecosystemb. composed of the plants present in the soilc. life in the outer spaced. composed of all living organisms present on earth which interact with the physical environmentEcological niche is:a. the surface area of the oceanb. an ecologically adapted zonec. the physical position and functional role of a species within the communityd. formed of all plants and animals living at the bottom of a lakeAccording to Allen’s Rule, the mammals from colder climates have:a. shorter ears and longer limbsb. longer ears and shorter limbsc. longer ears and longer limbsd. shorter ears and shorter limbsSalt concentration (Salinity) of the sea measured in parts per thousand is:a. 10 – 15b. 30 – 70c. 0 – 5d. 30 – 35Formation of tropical forests needs mean annual temperature and mean annual precipitation as:a. 18 – 25°C and 150 – 400 cmb. 5 – 15°C and 50 – 100 cmc. 30 – 50°C and 100 – 150 cmd. 5 – 15°C and 100 – 200 cmWhich of the following forest plants controls the light conditions at the ground?a. Lianas and climbersb. Shrubsc. Tall treesd. HerbsWhat will happen to a well growing herbaceous plant in the forest if it is transplanted outside the forest in a park?a. It will grow normallyb. It will grow well because it is planted in the same localityc. It may not survive because of change in its micro climate
d. It grows very well because the plant gets more sunlightIf a population of 50 Paramoecium present in a pool increases to 150 after an hour, what would be the growth rate of population?a. 50 per hourb. 200 per hourc. 5 per hourd. 100 per hourWhat would be the per cent growth or birth rate per individual per hour for the same population mentioned in the previous question (Question 10)?a. 100b. 200c. 50d. 150A population has more young individuals compared to the older individuals. What would be the status of the population after some years?a. It will declineb. It will stabilisec. It will increased. It will first decline and then stabiliseWhat parameters are used for tiger census in our country’s national parks and sanctuaries?a. Pug marks onlyb. Pug marks and faecal pelletsc. Faecal pellets onlyd. Actual head countsWhich of the following would necessarily decrease the density of a population in a given habitat?a. Natality > mortalityb. Immigration > emigrationc. Mortality and emigrationd. Natality and immigrationA protozoan reproduces by binary fission. What will be the number of protozoans in its population after six generations?a. 128b. 24c. 64d. 32