In order for a survey to accurately generalize the entire population, the survey must

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.

Will give brainliest to whoever !! what are some similarities and differences between the dongzhi festival (winter solstice) and christmas?

The fairies in disney's sleeping beauty are named fand maleficent. which name contains a root meanina. florab. faunac. merryweatherd. maleficent