Presence of gills in the tadpole of frog indicates that

Which of the following is a living fossil?

Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks.More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms,includes

A baby has been born with a small tail.It is a case exhibiting

Which of the following is the relatively most accurate method of dating of fossils?

The biogenetic law of Hackel is

Huan ancestors who left cave painting were

An important evidence in favour of organic evolution is the occurrence of

Evolutionary history of an organism is known as

The prehistoric man which lived on earth during late Pleistocene period

According to the theory of mutation by Hugo de Vries

Jurassic period of the mesozoic era is characterized by

Which of the following provides most evident proof of evolution?

Industrial melanism as observed in peppered moth proves that

The surprise products in the Miller's experiment were

Write about the ancestry and evolution of bat, horse and human on the basis of a comparative study of their forelimbs. What are these limbs categorised as?

How is Darwin's concept of evolution different from that of de Vries?

How do Darwin's finches illustrate adaptive radiation?

How is 'mutation' explained by Hugo de Vries different from the Darwinian variations?

What is adaptive radiation? How did Darwin explain this process of evolution?

State Hardy-Weinberg principle of genetic equilibrium. Knowing that genetic drift disturbs this equilibrium, mention what this disturbance in genetic equilibrium leads to.

How does 'fitness' of a population help in evolution?

How is genetic drift different from gene migration? Explain.

When we say 'survival of the fittest', does it mean that:
(a) those whose are fit only survive or 
(b) those that survive are called fit? Comment.

How did Louis Pasteur demonstrate that life comes only from pre-existing life?

Life originated from the earth's inorganic atmosphere in the past, but this no longer happens today. Give two reasons

What must have provided energy for the warmth for life to originate on primitive earth? Name the group of organisms first to release oxygen into the atmosphere.

What is individual's role in the evolutionary process?

What is the source of variation in monoparental (asexual) reproduction?

Expalin the statement "natural selection really means differential reproduction".

What do the terms prosimians and simians mean?

What is brachiation?

Who gave man the scientific name Homo sapiens? What does it mean? Which animals are regarded man's nearest relatives?

How does analogous organ support the theory of organic evolution?

Show that Darwin's natural selection is based on factual observations, with an example for each.

State the hypothesis of Oparin and Haldane about the primeval Earth condition. What do you understand by Haldane's hot, dilute soup? State its significance.

How did Louis Pasteur successfully demolish the popular theory of spontaneous generation? What were his conclusions?

Describe the steps by which simple inorganic substancess may have undergone chemical evolution to yield complex organic molecules that could eventually from matter.

Name the three kinds of selection. Show the three kinds with the help of figure.