Q. No.What type of human population is represented by the following age pyramid?
1. Stable population
2. Declining population
3. Expanding population
4. Vanishing population
The population dynamics of a species is basically regulated by
1. Climate
2. Food supply
3. Competition between and within the species
4. All of the above
July 11 is observed as:
1. World population day
2. No tobacco day
3. World environment day
4. World health day
If the Bengal Tiger becomes extinct
1. Hyenas and wolves will become scars
2. The wild areas will be safe for man and domestic animals
3. Its gene pool will be lost forever
4. The population of beautiful animals like deers will get stabilized.
Two opposite forces operate in the growth and development of every population. One of them is related to the ability to reproduce at a given rate. The force opposite to it is called
(1) Fecundity
(2) Environmental resistances
(3) Biotic control
(4) Mortality
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
In the V-PL growth curve, the asymptote is reached when
1. It's a lag phase
2. Just before the lag phase
3. At the time of curve reaching K
4. The time before deacceleration.
The table below gives the populations(in thousands) of ten species(A--J) in four areas (a-d) consisting of the number of habitats given within brackets against each. Study the table and answer the question as follows:
which area out of a to d shows maximum species diversity?
1. b
2. c
3. a
4. d
If the mean and the median pertaining to a certain character of a population are of the same value, the following is most likely to occur:
1. a normal distribution
2. a bi-modal distribution
3. a T-shaped curve
4. a skewed curve
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