This organ of digestion releases bile needed for fat digestion.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

What function does a limb serve in each animal how are the limb bones of the four animal similar based on the similarities what can be inferred about the evolution of the poor animals

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box