Question

which things do we need to remember in an exercise of tracing the family trees of species?​

Answer 1

Answer:

In an exercise of tracing the family trees of species, we need to remember certain things. Firstly, there are multiple branches possible at each and every stage of this process. So it is not as if one species is eliminated to give rise to a new one. A new species has emerged.

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Answer 2

Answer:

we need to remember the species of trees