Compare and contrast food webs and food chains. a pyramid of energy has 100 units of energy available for the first trophic level. how many units would be available for the primary consumers? how did you calculate this? in the following food chain, which part contains the most biomass? green plants → rabbits → owls what happens to the energy that a rabbit uses for staying warm and running from predators?

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Give examples of selective advantage of organism’s body part/organ

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?