Mutualism, commensalism and parasitism
Answer:
this is a common ... saw incredible similarities between birds and the theropod dinosaurs (especially ... Like all other reptiles, birds have scales (feathers are produced by tissues similar to ... for theropods are often more serious for the "thecodont" pseudo-hypothesis.
Explanation:
C. <span>The duodenum is a separate anatomic structure. It is the first part of the small intestine after the stomach. </span>