Advertisements
Advertisements
Question
Which one of the following organisms reproduces sexually only once in its lifetime?
Options
Banana
Mango
Tomato
Eucalyptus
Advertisements
Solution
Banana
APPEARS IN
RELATED QUESTIONS
(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.
Construct an age pyramid which reflects a stable growth status of human population.
Represent diagrammatically three kinds of age-pyramids for human populations.
List the attributes that populations but not individuals possess.
What is an age-pyramid?
Animals that can move from fresh water to sea called as ________.
Give an account of population regulation.
Measures of ‘Central tendency’ refer to:
Nutrient enrichment of water body result.
`"dN"/"dt" = "rN" (("K"- "N")/"K")` in logistic growth "K" represents:
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.
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.
Identify the type of pyramid given above. Write the identifying feature on the basis of which you identified it.
Important attributes belonging to a population but not to an individual are:
- Birth rate and death rate
- Male and female
- Birth and death
- Sex-ratio
Select the correct option from the given options:
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.
