Answer:
When a hypothesis is supported by evidence from repeated experimentation, it becomes a theory.
Hope this helps!! :)
They might have a common ancestor.
The answer is 2 and 5
* can breed and create fertile offspring
* have similar morphology
Species is defined as group of organisms that are of the same morphology (may have multiple lines within the group) and has the ability to mate and produce viable, fertile offspring.
An inference draws conclusions based on evidence gathered through observation. The conclusion is reached logically on the basis of facts known to be true or assumed to be true. An inference can be seen as an interpretation of what is observed. An inference is an element of reasoning, an act of thinking.
Comparative anatomy is the study of the similarities and differences in the structures of different species. ... Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants.