Video: Fossil: Definition, Types, Characteristics & Examples. Fossils provide scientists with many clues about Earth's history, offering evidence of dinosaurs and strange plants that existed in the past. This lesson will define a fossil, look at different types and characteristics of fossils, and then describe how fossils are formed.
The final result of the dot product process can be: 1  Zero: we don't have any growth in the original direction. 2  Positive number: we have some growth in the original direction. 3  Negative number: we have negative (reverse) growth in the original direction.
If marginal product is equal to average product, then average product does not change. The relation between average product and marginal product is one of several that reflect the general relation between a marginal and the corresponding average. If the marginal is less than the average, then the average declines.