In a population showing exponential growth, per capita growth rate will: (1) decrease as population size increasesdescribed by the equation (1) lnr = lna -b lnT (2) r = a-bT […]
Tag: CSIR NET Life Science Previous Year Questions and Solution Population Ecology
CSIR NET Life Science Previous Year Questions and Solution on Population Ecology
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CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Calculate Population Size After One Year Using Birth and Death Rates
In an experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time, ‘t’, then what will be […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Calculate Annual Population Rise Using Birth and Death Rates
In population of 10 million individuals, birth rate is 19 per 1000 and death rate is 14 per 1000. Annual rise in population would be (1) 50,000 (2) 5,000 (3) […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How a 10% Difference in Growth Rate Affects Two Exponentially Growing Populations Over 10 Generations
Consider that two population are growing exponentiallywith initial difference in growth rate of 10 %. After 10generation the approximate difference between two population sizes would be? (1) 1:1 (2) 4:1 (3) […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How Does the Difference in Growth Rates Affect Two Exponentially Growing Bacterial Cultures?
If two bacterial culture are growing exponentially with different in their intrinsic rate of growth. The difference in both population will differ (1) Increase linearly (2) Decrease linearly (3) Increase […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Plot a Bell Curve for K-Selected Species: Understanding Population Growth Graphs
In a graph population size (N) is plotted on X-axis then what should be plotted on Y-axis to get a bell shape curve for K-selected species (1) dN/dt (2) 1-dN/dt […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Equation Represents Population Growth Under Unlimited Resources? Understanding Exponential Growth
Among the following which equation denotes the population growth when resources are not limitating- (1) Nt= NOe–rt (2) dN/dt=rt (3) Nt/Nt=Nt-NO (4) dN/dt=Krt Which Equation Represents Population Growth Under Unlimited […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Carrying Capacity: The Maximum Sustainable Population Size Explained
The maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available around which stable well adapted […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
What Can You Infer from an Age Class Distribution Figure? Understanding Population Equilibrium
At a given time, the age class distribution of a population was as shown in figure: Which of the following can be inferred from the figure? (1) Age class 2 […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Calculate the Next Generation Size in an Age-Structured Population
17.Suppose a population has three age classes. Females in the second and third age classes produce four and three offsprings, respectively. While 50% female in the first age class survive […]
