The process where a population inhibits the growth of other population without affecting itself is known as 

(1) Amensalism

(2) Parasitism

(3) Mutualism

(4) Commensalism 

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

(1) Food shortage

(2) Immigration

(3) Disease

(4) Famine

The graph shows two types of population growth curve. A is exponential and B is logistic.

Which one of the following growth model considered as more realistic one?

1. Exponential growth curve

2. Logistic growth curve

3. Both the growth curves

4. None of the above

Resemblance of one organism with its surroundings for protection and hiding is

(1) mimicry               

(2) predation

(3) adaptation           

(4) camouflage

(1) A - II, B - I, C – III

(2) A - II, B - IV, C - III

(3) A - III, B - IV, C – I

(4) A - I, B - II, C - IV

If the age distribution (percent individuals of a given age or age group) is plotted for population, the resulting structure is called:

(1) Survivorship curve                       

(2) Life table

(3) Age pyramid                                

(4) Logistic model

The age distribution of a population is determined by:

(1) Timing of birth

(2) Timing of death

(3) The rate at which the population is growing

(4) All are correct

What four factors define population growth?

1. Births; deaths, immigration, emigration

2. Survivorship, age-specific mortality, fecundity, death rate

3. Mark-recapture, census, quadrate sampling, transects

4. Age-specific birth rate, metapopulation structure, quadrate, ecotone

Population growth of a species is not related to which of the following parameters?
(1) Nt + 1 = Nt + [(B + I) − (D + E)]

(2) Out of the four basic processes effecting population growth three leads to increase in population size

(3) For a newly colonised habitat immigration plays major role than birth rate

(4) Under normal conditions, natality and mortality are the most important factors

The density of a population in a given habitat during a given period, fluctuates due to changes in four basic processes. On this basis fill up A and B boxes in the given diagram with correct options:

(a) A = Natality + Immigration, B = Mortality + Emigration

(b) A = Natality + Mortality, B = Immigration + Emigration

(c) A = Birth rate + Death rate, B = Migration + Emigration

(d) A = Natality + Emigration, B = Mortality + Immigration