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प्रश्न
Distinguish between Natality and Mortality.
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उत्तर
| Natality | Mortality |
| Natality is defined as the number of birth of organisms in a population of a specific area with the passage of time. | Mortality is defined as the number of deaths of organisms in a population of a specific area with the passage of time. |
| Natality is an inherent ability of a population to increase | Mortality decreases population size. |
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संबंधित प्रश्न
Describe steady population with the help of a pyramid.
Construct an age pyramid which reflects an expanding growth status of human population.
Define the term natality.
Which of the following is wrongly matched?
Which district has the lowest child sex ratio?
State any two districts with favourable sex ratio. Indicate the ratios.
The number of individuals of population who left the habitat during the time period under consideration is known as ______.
Population density at time 't+ l' can be correctly represented as ______.
Which of the following attributes links ecology to population dynamics, genetics, and evolution?
The number of individuals present per unit space in a given time is known as ______.
The type of population represented in the given age pyramid is ______.
Identify the type of population shown in the given figures (a and b).
Mortality of a region is assessed by ____________ of individuals per unit area per unit time.
Changing nature of population is called ______
The type of natality that is relative to a specific criterion such as age is ______.
Match the following Column I with Column II.
| Column I | Column II |
| A. Population | (i) Part of the earth has all ecosystems. |
| B. Community | (ii) Assemblage of all individuals belonging to different species of an area. |
| C. Ecosystem |
(iii) Group of similar individuals of the same species, found in an area. |
| D. Ecosphere | (iv) Interaction between living organisms and their physical environment. |
In a growing population of a country, ______.
What are the decisive factors for population density?
Match the following:
| Column A | Column B | ||
| (i) | Organism | (a) | Large unit with specific climatic zone |
| (ii) | Population | (b) | Different species in particular area |
| (iii) | Community | (c) | Same species in a geographical area |
| (iv) | Biome | (d) | Basic unit of ecological hierarchy |
