In the Arctic marine habitat, fishing has long been a way of life. Natives to the area have satiably utilized the riches of the oceans for generations. Recently a commercial fishing company has entered this area and begun bottom trawling for small fish such as sardines and Arctic cod. How would such a fishing technique impact the ecosystem? Choose ALL that apply. A) Top level predators may leave the area in search of food. B) Overall, there will be a reduction in biodiversity in the area. C) Once prey species are caught, the food web in the area will be disrupted. D) Predators from other regions will move in to replace absent polar bears and seals. E) The trawl net will scoop up everything in its path, including marine life and seafloor structure.

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?

Which of the following is not associated with invasive species?

Why has two different alleles for the same trait?