In the 360 field trip video, most of the forest you observed was secondary growth forest, while other parts of the rainforest were primary growth forest. Which of the following attributes are characteristic of a secondary growth forest?.

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.

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.

An example of a fine motor skill is