It is the last choice because their similar bone structures suggest they once had a common ancestor, which is why they are all mammals.
Answer:
At the bottom you have the producers aka auto trophic livings (which use inorganic compounds to grow, produce energy, matter and so on..). These organisms would be plants, Cyrano bacteria, over all any organisms that do photosynthesis.
Here is the correct answer: <span>Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order
i hope this helps you out</span>
The way that you could use molecular biology to determine whether these birds have evolved from a shared common ancestor is to take a look at their proteins, RNA, and DNA. Because the more similar these things are in the two types of birds, the more possible it is that they are somewhat connected via a common ancestor.
