Scientists compare a fossil of a species that lived 5,000 years ago with members of the same species today. They notice there are several differences between the two. What most likely can be said about the environment and the species? A.
The environment changed significantly, but the species did not change.

B.
The environment changed significantly, causing the species to change over time.

C.
The environment did not change significantly, and the species developed new mating habits.

D.
The environment did not change significantly, but the species changed over time.

Which of the following is a question of morality? a.) delierately reporting false data b.) accidentally reporting false data c.) kepping a sloppy record of experimental observation d.) condition a drug experiment which will harm a lab rats

In what for do plants utilize nitrogen? why do they need nitrogen?

20 point pls brianliest 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?