Chapter 24 - Evolution - 11

Biology Class 12
1. The historical remnants of structures which were functional among the ancestors are called as _______ organs.


Biology Class 12
2. The frequencies of alleles and genotypes in a population’s gene pool remain constant over the generations among sexually reproducing organisms is called as _______.


Biology Class 12
3. The change in frequency of alleles at a locus that occurs by chance is called as _______.


Biology Class 12
4. _______ is a group of inter breeding individuals belonging to a particular species and sharing a common geographical area.


Biology Class 12
5. Archaeo bacteria can tolerate temperature up to _______.


Biology Class 12
6. A threatened species is likely to become _______ in the near future.


Biology Class 12
7. _______ recognized that organisms have evolved from simple and imperfect forms to complex and perfect forms.


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