Which is an example of communities ( in terms of biology ) A. 10 white-tailed deer

B. 2 blue jays, 3 northern cardinals, and 1 house sparrow eating seeds

C. 1 snapping turtle on a rock; 2 snapping turtles near the edge of a pond

D. 6 bullfrogs in a pond; 30 bullfrog tadpoles hatching from eggs

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

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?

What organs comprise the respiratory system of a bird