Which characteristic is common to all minerals? a. they are naturally occurring. b. they have the same chemical compositions. c. they have an amorphous structure. d. they are organic.

Based on their location in the atmosphere, the layers are able to have their own special characteristics. for example, most weather occurs in the troposphere. what occurs in each of the other layers? (site 1)

The cluster of developing cells from conception until birth is called an

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.