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Question
Animals that can move from fresh water to sea called as ________.
Options
Stenothermal
Eurythermal
Catadromous
Anadromous
Solution
Animals that can move from fresh water to sea called as Catadromous.
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.
How does an age pyramid for human population at given point of time helps the policy-makers in planning for future.
Define population
Define the Carrying capacity.
Answer the following question.
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Mention the different ways by which the population density of different species can be measured.
Give an account of population regulation.
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:
Fish
Comment on the following figures: 1, 2 and 3:
A, B, C. D, G, P, Q, R, S are species
An individual and a population has certain characteristics. Name these attributes with definitions.
The following diagrams are the age pyramids of different populations. Comment on the status of these populations.
With the help of neatly labelled diagrams, explain the different types of age pyramids of human population.
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.
