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प्रश्न
According to scientists, aves have evolved from :
(a) mammals
(b) amphibians
(c) reptiles
(d) arthropods
उत्तर
According to scientists, aves have evolved from reptiles.
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संबंधित प्रश्न
Give an example of characteristics being used to determine how close two species are in evolutionary terms.
Give the respective scientific terms used for studying the development of new type of organisms from the existing ones.
In what way are analogous organs evidence for evolution?
A population of red beetles lives in green bushes in a garden. Once during the process of breeding, a green beetle is produced.
(a) State whether the change in colour of beetle is a process of evolution or not.
(b) Can the new colour of green beetle be passed on to its next generations?
(c) What will be the advantage (if any) of the green colour to the beetle?
(d) State whether the production of green colour involved a change in genetic material or not.
Read the following statement and justify same in your own words with the help of suitable example.
Human evolution began approximately 7 crore years ago.
Write short notes based upon the information known to you.
Evolution
List two differences between acquired traits and inherited traits by giving an example of each.
Very short answer question.
Define the Gene frequency
Name any three types of postmating isolating mechanisms.
The sequence of gradual changes which takes place in the primitive organisms over millions of years in which new species are produced is known as ______
