Of the new institutions that came into being once city life had begun,
which would have depended on the initiative of the king?
Which of the following were necessary conditions and which the causes,
of early urbanisation, and which would you say were the outcome of the
growth of cities:
(a) highly productive agriculture, (b) water transport, (c) the lack of metal
and stone, (d) the division of labour, (e) the use of seals, (f) the military
power of kings that made labour compulsory?
Why do we say that it was not natural fertility and high levels of food
production that were the causes of early urbanisation?
Explain the role of decomposers in an ecosystem. Why are they important for maintaining balance in nature?
Describe Mendel’s experiment with pea plants. What was his conclusion regarding the inheritance of traits?
Explain the process of binary fission in amoeba with the help of a diagram.
What is reflex action? Explain the role of the spinal cord in reflex actions.
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