Trace fossils like coprolite and gastrolith can tell us what? a) that an organism was once active in an area b) that an organism was never active in an area c) exactly how big an organism was d) typical number of dinosaur eggs in a nest

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

Models are non-visual ways of coummincating how someone thinks about something in the natural world

The activity of the modern sample is 1.10 bq . how long does that measurement take?