I think the answer is<span> all species evolve from pre-existing species. This was based on Charles Darwin's Theory of Evolution which he learned during his expeditions.He identified that some fossils have similarities with other existing animals, in which he believed were a part of adaptation in order to survive.</span>
Average human has over 100 trillion microbes in and on their body
Answer:
AA , Aa , Aa and aa
Explanation:
AA X aa gives 4 Aa (F1)
When F1 is crossed Aa x Aa gives AA ,
2 Aa and aa (F2 generation)
