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What parameters are used for tiger census in our country’s national parks and sanctuaries? - Biology

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प्रश्न

What parameters are used for tiger census in our country’s national parks and sanctuaries?

विकल्प

  • Pug marks only

  • Pug marks and faecal pellets

  • Faecal pellets only

  • Actual head counts

MCQ
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उत्तर

Pug marks and faecal pellets

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 13: Organisms and Populations - MULTIPLE CHOICE QUESTIONS [पृष्ठ ९०]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 12
अध्याय 13 Organisms and Populations
MULTIPLE CHOICE QUESTIONS | Q 13. | पृष्ठ ९०

वीडियो ट्यूटोरियलVIEW ALL [3]

संबंधित प्रश्न

Construct an age pyramid which reflects a stable growth status of human population.


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


What is reproductive fitness? Explain it with the help of an example.


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)}


Mention the different ways by which the population density of different species can be measured.


Animals that can move from fresh water to sea called as ________.


Give an account of population regulation.


Nutrient enrichment of water body result.


Population having large number of postreproductive and small number of prereproductive age group is called


`"dN"/"dt" = "rN" (("K"- "N")/"K")` in logistic growth "K" represents:


Age distribution in a population can influence


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:

Banyan


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.


List any four characters that are employed in human population census.


Comment on the following figures: 1, 2 and 3:

A, B, C. D, G, P, Q, R, S are species


Write the best method to measure the population density of a single Banyan tree in comparison to Partlzenium weeds in a forest by an ecologist. Explain and justify your answer.


Important attributes belonging to a population but not to an individual are:

  1. Birth rate and death rate
  2. Male and female
  3. Birth and death
  4. Sex-ratio

Select the correct option from the given options:


With the help of neatly labelled diagrams, explain the different types of age pyramids of human population.


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