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Q.
In reptiles, birds, mammals, gymnosperms and angiosperms the fertilisation is
Reproduction in Organisms
Solution:
In many terrestrial organisms, belonging to fungi, higher animals such as reptiles, birds, mammals and in a majority of plants (bryophytes, pteridophytes, gymnosperms and angiosperms), and syngamy occurs inside the body of the organism, hence the process is called internal fertilisation.