Answer:
C
Explanation:
Answer C has the dirtiest water
Answer:
d. furcula
Explanation:
Furcula
Furcula is a synapomorphy linking dinosaurs and birds .
The furcula is the structure formed by midline fusion of clavicles and this very element is unique in the theropods as well . And is the most crucial for understanding the link between birds and the theropods .
The first suggestion was by Huxley in 1868 , and in 1870 , the key component of the debate is the presence of Frucula .
There are living organisms that do these processes alongside one another to sustain a balanced cycle.
Https://www.studyblue.com/notes/note/n/test-2/deck/16537854 this should help