Question
Identify the type of growth curves observed in plants.



Constant linear growth curve for the arithmetic growth.
Exponential (J shaped) growth curve for the geometric growth.
Sigmoid growth curve related to distinct phases of growth.
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(a) Which apparatus is shown in the given diagram ?


The diagram given below is that of a intra-uterine contraceptive device. Study the same and then answer the questions that follows:
1.Give the name of intra-uterine contraceptive device shown in the diagram.
2.What is its mode of action?
