Biology, asked by rautsanchit05, 7 hours ago

observe the diagram and fill the blank spaces 1)___ 2)___ 3)___ & 4)____​

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Answered by aureliastar
1

Answer:

1. Fossils Record

2. Comparative Anatomy

3. Direct Observation

4. Embryo Development

(Hehe, I am not sure if this correct though, but hope this will help)

Explanation:

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