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प्रश्न
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Bacteria
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उत्तर
Bacteria - Nos. / Vol
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संबंधित प्रश्न
Study the graph given below and answer the questions that follow :
(i) Write the status of food and space in the curves (a) and (b).
(ii) In the absence of predators, which one of the two curves would appropriately depict the prey population?
(iii) Time has been shown on X-axis and there is a parallel dotted line above it. Give the significance of this dotted line
Represent diagrammatically three kinds of age-pyramids for human populations.
How does an age pyramid for human population at given point of time helps the policy-makers in planning for future.
"Analysis of age-pyramids for human population can provide important inputs for long-term planning strategies." Explain.
If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?
Study the flow chart given below and complete the equation that follows by identifying 1, 2, 3 and 4.
Nt + 1 = Nt + {(1+ 2) − (3 + 4)}
Animals that can move from fresh water to sea called as ________.
Measures of ‘Central tendency’ refer to:
The phenomenal and rapid increase of population in a short period is called ______.
Population having large number of postreproductive and small number of prereproductive age group is called
Which of the following would necessarily decrease the density of a population in a given habitat?
Which one of the following organisms reproduces sexually only once in its lifetime?
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Deer
Label the three tiers 1, 2, 3 given in the above age pyramid.
What type of population growth is represented by the above age pyramid?
An individual and a population has certain characteristics. Name these attributes with definitions.
The number of lily plants in a pond was found to be 50. After one year, the number. increased to 65. Calculate the natality of lily plants.
