Why is a diagram of energy flow from trophic level to trophic level shaped like a pyramid?

a. organisms at each level store most of the energy and pass little on.
b. there are more producers than primary consumers, and so on.
c. organisms eventually die.
d. most energy at each level is lost, leaving little for the next.
e. secondary consumers are larger than primary consumers, and so on.

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?