this is a fossil feather (scale bar is 25mm). is that information alone sufficient to identify it as coming from a bird?

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?