Maria assembled pictures of the organisms seen here to represent a simple aquatic food chain. what must maria add to make this food chain model more accurate? a) arrows to show the flow of energy. b) the sun and arrows to show the flow of energy. c) the sun, a producer, and arrows to show the flow of energy. d) maria should color the organisms and then add arrows to show the flow of energy.

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

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?