When comparing dogs to wolves, scientists found evidence that supports the idea they come from a common ancestor. which evidence was most important in understanding this? comparable anatomies, fossils, and behavior different anatomies, similar development, and different dna comparable anatomies, similar development, and similar dna different anatomies, fossils, and behavior

A common ancestor is an ancestral organism that two or more descendant lineages have in common. Closer the common ancestor is, more similar are descendant lineages. To compare two species, in this example dogs and wolfs, it is important to notice comparable anatomies, similar development, and similar DNA.

Dogs and wolfs really have similar development and anatomy, and thus it is expected they have similar DNA, and finally, the common ancestor.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.