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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:
Banyan
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उत्तर
Banyan - Biomass / area
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संबंधित प्रश्न
(a) Name the two growth models that represent population growth and draw the respective growth curves they represent.
(b) State the basics for the difference in the shape of these curves
(c) Which one of the curves represents the human population growth at present? Do you think such a curve is sustainable? Give reason in support of your answer.
List the attributes that populations but not individuals possess.
If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?
What is an age-pyramid?
Answer the following question.
"The size of a population for any species is not a static parameter." Justify the statement with specific reference to fluctuations in the population density of a region in a given period of time.
Animals that can move from fresh water to sea called as ________.
Nutrient enrichment of water body result.
The phenomenal and rapid increase of population in a short period is called ______.
`"dN"/"dt" = "rN" (("K"- "N")/"K")` in logistic growth "K" represents:
Which one of the following organisms reproduces sexually only once in its lifetime?
What type of population growth is represented by 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
The following diagrams are the age pyramids of different populations. Comment on the status of these populations.
Given below is the Age Pyramid of the population in one of the states in India as per 2011 census. It depicts the male population on the left-hand side, female population on the right-hand side, newborns towards the base and gradually increasing age groups as we move from base to the top, with the oldest population at the top. Study this pyramid and comment upon the appropriateness of the Assertion and the Reason.
Percentage to the total population
Assertion: It is a stable population.
Reason: The pre-reproductive and reproductive individuals are almost in equal numbers and the post-reproductive individuals are relatively fewer.
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.
What would be the best method to measure the total population density of a dense bacterial culture in a petridish and why?
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.
