Which bird trait is an example of a derived trait?

What are examples of organisms that breaks down waster dead organisms? Is mitochondria Archaebacteria or Eubacteria? What makes metals like copper conductive to electricity? In the life cycle of a star what stage occurs immediately before a supernova explosion? What are the solutions for Heavy traffic? When are the terms melting point and freezing point used? What is the latitude and longitude of punta arenas? Which gases burn hot? Flora and fauna of ganga brahmaputra basin? Why is that electrical impulses cannot pass from neuron to muscle cell? What is water vacuole? If you need to paint a 2 meter long and 1 meter high fence and one paint can covers 2 square feet how many cans of paint so you need? What word is used for the curved upper surface of a liquid in a tube? What percent of fatal collisions occur on roads with posted speed litmus of 55 mph or more? How many time zones does Ireland have? What happens when you put soda and vinegar together? What is lunar exploration? What would you weigh on Mars if you weigh 105 pounds on earth? Where do germ tube of this fungus penetrate? How long can a hurricane travel over land classified as an F1 hurricane?