Question

Question 23:
Give an example of characteristics being used to determine how close two species are in evolutionary terms.

Lakhmir Singh Biology Class 10

Answer 1

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● The change in DNA due to reproduction are mainly responsible for evolution .
the change will take place in the DNA of species go on accumulating from one generation to the next.soo if the DNA change in any two of species , are less than the the two species are quoit close to one another in the evolutionary term.

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Answer 2

the organisms with same  ancestors will have same characteristics. they are used to determine how close two organisms are.

for example the fore limbs of frog  and the hands of humans have same structure but they have different function. they show us that humans and frogs were linked