Advertisements
Advertisements
प्रश्न
Distinguish between Natality and Mortality.
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. |
APPEARS IN
संबंधित प्रश्न
Describe steady population with the help of a pyramid.
Construct an age pyramid which reflects an expanding growth status of human population.
With the help of suitable diagrams, explain how the age structures determine the trend of population.
In sex ratio, Tamil Nadu ranks
Which of the following is wrongly matched?
Which district has the lowest child sex ratio?
Which Union Territory has the highest sex ratio?
The number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration is known as ______.
The number of individuals of population who left the habitat during the time period under consideration is known as ______.
Which of the following is INCORRECT?
A biologist studied the population of rats in a barn. He found that the average natality was 300, average mortality 250, immigration 50 and emigration 100. The net increase in population is ____________.
The type of population represented in the given age pyramid is
Which of the following attributes links ecology to population dynamics, genetics, and evolution?
What does 'N' represent in the given equation of population density?
[Nt+1 = Nt + [(B + I) - (D + E)]
Which of the following situations contributes to increase in density of population?
Exponential growth equation is `"N"_"t" = "N"_0 "e"^pi` where Nt = population density after time t then what does N0, e and r refers to respectively ____________.
A population is a group of all ____________ in a given time.
Changing nature of population is called ______
From the given diagram, identify the type of population growth curve:
The type of natality that is relative to a specific criterion such as age is ______.
In a growing population of a country, ______.
Identify ‘A’ in the given graph of population growth:
The aggregate of processes that determine the size and composition of any population is called ______.
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 |
