Q10 of 56 Page 1

What are fossil? What do they tell us about the process of evolution?

Fossils are defined as the dead remains of plants and animals that lived in remote past.

The presence of fossils proves the evolution. Such as one of the example of Fossil is: A bird Archaeopteryx has many characteristics of reptiles and seems to be evolved from reptiles.


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Describe any three ways in which individual with a particular trait may increase in population.

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State the evidence we have for the origin of life from inanimate matter.

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(a) “The sex of the children is determined by what they inherit from their father and not their mother.” Justify.

(b) Give an example where environmental factor like temperature determined the sex of the offspring.

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Dams are useful for the society but there is public opposition to the construction of large dams. Justify your answer by giving three problems.