What are fossils? the remains or traces of an organism preserved from the geologic past objects that people of long ago left behind as artifacts to preserve a record living creatures with habitats in or around the rock the very oldest layers of rock in a particular region

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

Me brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula.5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects.8. describe the planets’ orbits around the sun.9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets.13. what causes the seasons?