Observe the population growth curve and answer the questions given below:
(a) State the conditions under which growth curve ‘A’ and growth curve ‘B’ plotted in the graph are possible.
Observe the population growth curve and answer the questions given below:
(a) State the conditions under which growth curve ‘A’ and growth curve ‘B’ plotted in the graph are possible.
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Solution and Explanation
- Growth curve ‘A’ (Exponential growth): This type of growth occurs under ideal conditions, where there are no limitations on resources such as food, space, or other environmental factors.
- Growth curve ‘B’ (Logistic growth): Logistic growth takes place under natural conditions where resources are limited. Environmental resistance, such as competition and predation, slows down the growth and stabilizes the population at the carrying capacity.
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Study the diagram given below :
(a) Name and explain the procedure shown in the diagram. Mention one of its advantage and one disadvantage.
(b) How is "Saheli" different from other oral pills in terms of its composition and advantage ?
Given below are certain situations related to birth control. Analyse each situation carefully and suggest appropriate contraceptive method that could be used. Also explain its mode of action.
Situation 1 - To prevent entry of sperm into cervix.
Situation 2 - Devices that are inserted by doctors or expert nurses in the vagina.
Situation 3 - Effective emergency contraceptive.
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Situation 5 - Surgical method in female to prevent pregnancy.
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