Which one of the following conditions is an example of resource partitioning?

a. two species of squirrels—one that eats acorns from the branches and one that eats acorns that have fallen to the ground
b. two species of mice—one that eats seeds and the other that eats insects
c. two species of birds that eat fruit from the same tree
d. a species of butterfly and a species of bee that pollinate the same flower

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?