According to modern systems of classification, birds are descendants of T<span>heropoda dinosaurs. These dinosaurs are called Paraves. From this clade, a node is made during the evolution. The new clade is called Aves. This is where birds are classified.</span>
Answer:
Water moves through the help of living organisms in an ecosystem. ... Other nonliving processes such as evaporation, precipitation, water returns back into the atmosphere.
Explanation:
Answer:
Most people live in valleys.
Explanation:
The reason for why they live there is for the view.