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.
In this instance the false negative can arise from three problems. 1  First of all check the box to be sure that the product has not expired or shows visible signs of damage.  Second, check to see if the sensitivity of the test purchased is 20 international units of pregnancy hormone (HCG).