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प्रश्न
Which one of the following organisms reproduces sexually only once in its lifetime?
पर्याय
Banana
Mango
Tomato
Eucalyptus
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उत्तर
Banana
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संबंधित प्रश्न
Construct an age pyramid which reflects a stable growth status of human population.
How does an age pyramid for human population at given point of time helps the policy-makers in planning for future.
What is an age-pyramid?
Define the carrying capacity.
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Nt + 1 = Nt + {(1+ 2) − (3 + 4)}
Give an account of population regulation.
Nutrient enrichment of water body result.
`"dN"/"dt" = "rN" (("K"- "N")/"K")` in logistic growth "K" represents:
Age distribution in a population can influence
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
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The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Fish
What type of population growth is represented by the above age pyramid?
Draw an age pyramid for the ‘zero population growth rate’.
Comment on the following figures: 1, 2 and 3:
A, B, C. D, G, P, Q, R, S are species
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.
What would be the best method to measure the total population density of a dense bacterial culture in a petridish and why?
Identify the type of pyramid given above. Write the identifying feature on the basis of which you identified it.
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.
