What have we learned from fossil evidence about evolution? It is an abrupt change.
The process is observable.
It takes place during one lifetime only.
The most complex traits are always selected.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

What is the main fuel source for the work of the cell

What process occurs during cellular development as the cell changes into a specific type of cell with specialized functions? a. binary fission b. fusion c. differentiation d. meiosis