Population Attributes-Growth, Birth Rate and Death Rate, Age Distribution NEET Questions

Biology - Ecology and Environment

Population Attributes-Growth, Birth Rate and Death Rate, Age Distribution MCQ Questions


7.
What does the flat phase of the sigmoid curve indicate?
A.
Accelerating growth
B.
Exponential growth
C.
Zero population growth
D.
Maximum natality
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ANSWER :
C. Zero population growth
8.
In a population, if natality and immigration exceed mortality and emigration, the population will?
A.
Increase
B.
Decrease
C.
Stabilize
D.
Oscillate
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ANSWER :
A. Increase
9.
The age group 0-14 years in a population pyramid indicates?
A.
Declining population
B.
Young or pre-reproductive population
C.
Stable population
D.
Post-reproductive population
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ANSWER :
B. Young or pre-reproductive population
10.
The number of births per 1000 individuals per year is called?
A.
Death rate
B.
Immigration
C.
Birth rate
D.
Carrying capacity
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ANSWER :
C. Birth rate
11.
Negative growth curve is represented by?
A.
Inverted pyramid
B.
Bell-shaped pyramid
C.
Triangular pyramid
D.
None
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ANSWER :
A. Inverted pyramid
12.
The population density of a species is least influenced by?
A.
Birth rate
B.
Death rate
C.
Immigration
D.
Coloration
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ANSWER :
D. Coloration