Question
Explain the term Secondary sexual characters.
✓
Answer
Secondary sexual characters: They develop at the time of puberty due to hormonal activity. In a female, there is the development of breasts and change in body shape and size of hips. In a male, there is a development of a beard and mustache and deepening of the voice.
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In an experiment, two sets of apparatus were set up as shown below:
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Name the process by which red ink moves in A and B.
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Name the process by which red ink moves in A and B.
Which type of pressure forces the water molecules to move towards thistle funnels and cause a rise in the water level?
Where does this process occur in plants and animals?
What material could be used as a semi-permeable membrane?
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