Advertisements
Advertisements
प्रश्न
Define Organic evolution.
Advertisements
उत्तर
Organic evolution can be defined as slow, gradual, continuous and irreversible changes through which the present-day complex forms of the life developed (or evolved) from their simple pre-existing forms.
APPEARS IN
संबंधित प्रश्न
Explain the concept ‘survival of the fittest’.
Give an example of characteristics being used to determine how close two species are in evolutionary terms.
Out of the wing of a bird, wing of an insect and the wing of a bat :
which two are homologous organs?
Match the terms given in column I with those given in column II :
| Column I | Column II |
| (1) Fossil | (a) A famous evolutionist |
| (2) A theory of evolution | (b) Survival of the fittest |
| (3) Probable ancestor of birds | (c) Petrified remains of prehistoric life |
| (4) Charles Darwin | (d) Father of genetics |
| (5) Gregor Mendel | (e) Archaeopteryx |
Read the following statement and justify the same in your own words with the help of suitable examples.
Study of fossils is an important aspect of study of evolution.
Complete the statement by choosing correct options from below .
Evolution means -- -- -- --.
Answer the following question in ‘One’ sentence only:
Define ‘mutation breeding’.
Transfer of a part of chromosome or set of genes to a non-homologous chromosome is called ________.
Which of the following is the correct pair?
Define the following term:
Evolution
