I'd say first question, "life changes over time".
Second question, "when there are physical similarities in the early stages of embryonic development, it suggests that each of the modern organisms once had a common ancestor".
Third, appendix.
Fourth, "they are evidence that all came from a common ancestor and that life changed over time for all these organisms to exist".
Fifth, "they all share at least 50% of the same DNA arrangement".
I might be a little late but hopefully this helps!
Answer:its a 50% probably
Explanation: because the outcomes would be: BB, Bb, Bb, bb.
Because less animals means less energy that can be used.
Answer:
100%
Explanation:
Father Genotype: BB
Mother Genotype: OO
One allele will come from the father and one from the mother. Based on the parents' genotypes, any child will take the B allele from the father and an O allele from the mother, so it will have the genotype: BO
O is a recessive allele so the child will always have blood type B.
A tentative explanation of a phenomenon that can be tested I believe is a scientific experiment.