Evolution is
Development of $DNA$ from nucleotides.
Development of organism through time.
Development of a cell from chemicals.
cloning
Match the following.
Column $- I$ | Column $- II$ |
$(A)$ Lamark | $(p)$ Finch bird |
$(B)$ De Vries | $(q)$ Evening primerose |
$(C)$ Darwin | $(r)$ Giraffes |
$(s)$ Melanic moths |
Definitions / Explanation : Homology & Adaptive radiation or divergent evolution
Assertion : Natural selection is the outcome of difference in survival and reproduction among individuals that show variation in one or more traits.
Reason : Adaptive forms of a given trait tend to become more common; less adaptive ones become less common or disappear.
Contribution of scientist : Hugo de Vries, Hardy - Weinberg and Ernest Haeckel.
How do you express the meaning of words like race, breed, cultivars or variety ?