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 .
Genetics is the study of genes.
An example of a structural adaptation for a zebra is A) The zebra herd constantly moves and is in the Company of other grazers for survival.
When red blood cells are placed in a hypertonic solution, the higher effective osmotic pressure of the bathing solution compared with the intracellular fluid results in water moving down its osmotic gradient and a net movement of water out of the cell via osmosis (10).