WHAT IS THE DIFFERENCE BETWEEN ORES AND MINERALS? A. A mineral is a non-living, solid substance that can be extracted from the ground. Ore is a type of mineral made up of metals.
B. An ore is non-living and solid with little value unless it occurs in large amounts, in which case it is a mineral.
C. A mineral is a valuable form of ore that can be extracted from the ground.
D. A mineral is a non-living, solid substance made of elements. Ore is a large deposit of one or more valuable minerals in the ground.

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

An ecologist is studying the effects that a population of predators is having on a population of a prey. he used data from the field to produce this graph. which conclusion can draw from the graph?

Explain how scientists use geologic time to determine the age of landforms.