One way that fossils form by the dead organism's soft tissue is ________ by sediments such as sand.
Arepaired
Breplaced
Cpreserved
Dbonded
A female bird develops a preference for males who can perform a particular dance. This is an example of something that could lead to
Atemporal isolation.
Bnutritional isolation.
Cgeographic isolation.
Dbehavioral isolation.
Growing up, Darwin saw that farm animals with preferred traits were chosen for breeding. Those chosen animals usually produced offspring with the preferred traits. This best illustrates the process of
