Organisms and P...

The density of a population in a given habitat during a given period, fluctuates due to changes in certain basic processes. On this basis, fill up boxes A and B in the given flow chart with correct option.

What does the shape of the given age pyramids reflects about the growth status of the related population?

The population growth is generally described by the following equation:

What does 'r' represent in the given equation?

The plant-animal interactions often involve co-evolution of the mutualists so that

Which type of interaction is represented by the given figure?

Species interaction with negative influence on both is referred to as 

In a pond, last year there were 30 lotus plants. Through reproduction, 25 new lotus plants were added in one year while 8 plants died. The birth and death rates for the lotus population respectively are ___ and ____ individuals per lotus per year.

Which of the following is not an example of using relative density to measure population density in a certain area?

Total number of individuals of a species per unit area and per unit time is called:

Percentage of individuals of a given age group in a given population is called as

Population ecology is an important area because it _____(i)_______ ecology to population genetics and _____(ii)________ 
identify (i) and (ii) in the above statement and select the correct option.

In a given population of 2000 individuals, 80 births and 125 deaths were reported over a given period of time. Which of the following graphs will correspond to it?

Parameters related to age structure include

The age structures of a population influences population growth because

Which of the following factors has a negative effect on the population growth rate?

If N  population density at time t, then population density at time t+1 can be written as

N_t +1=N_t +[(A+B)−(C+D)]
Select the correct option for A, B, C and D in the above equation. 

Which of the following is not a factor that would limit the growth of a population?

The given figure represents different factors affecting population density (N) If B = nasality, D = mortality, E = emigration and I = immigration; then select the incorrect option regarding these.

Exponential growth is observed in a population when

In a population per capita birth rate is 0.15 and per capita death rate is 0.08 during a unit time period. What is the value of r (intrinsic rate of natural increase) for the given population?