BIOLOGY 4 Marks Questions

Describe one example of adaptive radiation?###Explain the adaptive radiation with examples.

Try to trace the various component of human evolution (Hint: brain size and function, skeletal structure dietary preferences, etc.).

Find out from newspapers and popular science articles any new fossil discoveries or controveries about evolution.

Using various resources such as your schood library or the internet and discussions with your teacher, trace the evolutionary stages of any one animal, say horse.

Describe in detail the origin and evolution of human?

How many types of natural selection are there? Discuss each type with a suitable example.

What is Mutation? Describe the main points of mutation theory?

What do you understand by connecting link? Explain with examples.

Explain the mechanism of evolution.

What evidence for biological evolution is obtained from, comparative anatomy? Describe in detail

(a) Write the name of primates existing on earth about 15 million years ago. Write its important characteristics also?
(b) (i) From where did the animals similar to human being meet?
(ii) In which sequence were neanderthal, homohabilis and homo erectus evolved on earth?
(iii) When did modern man evolve on this planet?

What is Hardy-Weinberg principle? Discuss with suitable example.

Who gave theory of use and disuse of organs? Discuss in detail the inheritance acquired character?

Describe in detail that formation of life was preceded by chemical evolution.
OR
Write an essay on Oparin theory of origin of life.

Write an essay on Darwinism.
OR
What do you understand by Darwinism? Describe in detail.
OR
Discuss various steps explaining the detail mechanism of natural selection theory given by Darwin.

Describe biological evolution from paleontological and embryological evidences.

What do you understand by the evidences of Evolutions describe in detail with suitable example the three evidences of evolution?

Describe in detail the various ancient and modern hypothesis given to explain the origin of life on earth.

Differentiate between homology and analogy. Also discuss the homologous and vestigeal organs with example and how do they explain the evidence of evolution.

Write the important characteristic of cromagnon man and also clarify that it was closest ancestor of modern man?

How did geographical evolution helpful in explaining evolution? Justify your answer with suitable example?

Explain the difference between apes and human.