Which is not considered as major threat to loss of species diversity (1) Habitat destruction (2) Overexploitation (3) Alien invasion (4) Pollution The Five Major Threats to Biodiversity Research and […]
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CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Calculate Per Capita Death Rate from Bird Population Growth and Birth Rate
The population size of a bird increased from 600 to 645 in one year. If the per capita birth rate of this population is 0.125, what is its per capita […]
CSIR NET Life Science Previous Year Questions and Solution on Conservation Biology
Why Human-Wildlife Conflicts Are Increasing: The Role of Habitat Destruction
Common news of conflicts between human and wild animals has happened due to- (1) Habitat destruction (2) Increased poaching (3) Increased conservation (4) Increased Human population What Is Human-Wildlife Conflict? […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Calculate Death Rate from Insect Population Density and Birth Rate
The population density of an insect species increasesfrom 40 to 46 in one month. If the birth rate during thatperiod is 0.4. What is the death rate? (1) 0.25 (2) […]
CSIR NET Life Science Previous Year Questions and Solution on Conservation Biology
How Are Biodiversity Hotspots Characterized? Key Criteria Explained
Biodiversity hot spots are characterized on the basis of (1) Endemic flowering plants (2) Extent of loss of habitat (3) Total species of flowering plants and animals (4) Endemic flowering […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Project Gypsy Moth Egg Density Over Time Using Linear Growth
If gypsy moth egg density is 160 at time t and 200 at t + 1, what will be its value at time t + 3, assuming that egg density […]
CSIR NET Life Science Previous Year Questions and Solution on Conservation Biology
Biodiversity Hotspots in India: North Eastern Himalayas and Western Ghats
In India the hot spot of biodiversity are (1) Eastern and western Himalayas (2) North Eastern Himalayas and Western Ghats (3) Eastern and Western Ghats (4) Eastern Himalayas and Andaman […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Population Has the Lowest Intrinsic Rate of Growth? Interpreting Population Graphs
The graph below shows the change in the size of four populations (A-D) over time. Which among the four populations (A, B, C, and D) would have the lowest intrinsic […]
CSIR NET Life Science Previous Year Questions and Solution on Conservation Biology
How Much of Earth’s Land and Plant Species Are Covered by Biodiversity Hotspots?
On earth there are 21 designated hot spot of biodiversity as on 2004. They covers total- (1) 24 % of total plant species and 1.8 % of total land area […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Understanding the Relationship Between Generation Time and Population Growth Rate
The general relation between generation time (T) and population growth rate (r) isdescribed by the equation (1) lnr = lna -b lnT (2) r = a-bT (3) lnr= lna + […]
