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प्रश्न
Give the importance of fossil in support of organic evolution
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उत्तर
a. Fossils are defined as the dead remains of plants and animals that lived in the past in various geological layers.
b. Unlike the evidences from other branches of biology, evidence from fossils are sound, direct and reliable.
c. Fossils are described as the true witnesses or documents of evolution.
d. The development in the field of Geology reveals that the primitive forms of organisms occupy the lower layers and the advanced forms occupy the upper layers of the earth during fossilization.
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संबंधित प्रश्न
Attempt giving a clear definition of the term species.
Name the scientists who Discovered the fossil of Australopithecus
The presence of which of the following types of organs in two animals indicates that they are not derived from a common ancestor?
(a) homologous organs
(b) excretory organs
(c) analogous organs
(d) reproductive organs
The wings of a housefly and the wings of a sparrow are an example of :
(a) analogous organs
(b) vestigial organs
(c) respiratory organs
(d) homologous organs
The organs P and Q of two animals have different structures but similar functions. On the other hand, the two organs R and S of two other animals have the same basic structure but different functions.
(a) What are the organs like P and Q known as?
(b) Name the organs like P and Q. Also name the animals which have such organs.
(c) What are the organs like R and S called?
(d) Name the organs like R and S. Also name the animals which have such organs.
Vestigial organ ______ present in human body is proof of evolution.
Give scientific reason.
Vertebrates have slowly originated from invertebrates.
Complete the flowchart.
Find the odd one out:
Define Palaeontology.
