<span>The causes for recent amphibian declines are many, beacuse of an emerging disease called chytridiomycosis . Chytridiomycosis is a disease caused by the fungal chytrid pathogen Batrachochytrium dendrobatidis.
I hope this helps! :D</span>
It was the famous Theodor Escherich who is a famous German bacteriologist that discovered the E. coli and was also known for his research in the area of protein synthesis. In addition to that, Theodor Escherich discovered the bacteria type when he examined its samples from a patient suffering from gastroenteritis.
Answer:
The bones are homologous structures
Explanation:
Homologous structures are the structure which are found similar in appearance in different organisms.
The homologous structures in different organism shows that they shared a common ancestor or they diverged from a common ancestor during course of evolution that is these homologous structures are the result of the divergent evolution.
In the given question, the bat, dolphin and the cat shows the same structure of bone which indicates that they have evolved from a common ancestor and is true as they all belong to mammals.
Thus, the bones are homologous structures is correct.