A science textbook has four chapters, each with a number of skills problems and of analysis problems. A table representing this information is on the left. Based on the table, which of the following statements is true ?

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.

Why has there been such a large increase in theft and other crimes in the u. s

When do you think it’s best to take the psat (what grade year / when in the year)?