Which one of the following organisms is missing from the food chain? Leaves → caterpillar → X → Hawk   A.    X – Snake B.    X – Fox C.   X – seaweed D.   X - sparrow

Biology The food web of the harp seal is most dependent on which of the following organisms?. 1. Polar bear 2. Phytoplankton 3. Atlantic cod 4. None of these

5. Which organisms do leopard seals eat? 6. Which organisms eat krill? 7. What producer(s) can be found in the food web? 8. List one important type of organism missing from this food web: 9. If there was a large oil spill which blocked most of the sunlight, decreasing the amount of algae available, how would each of the following populations be affected? 10. Use the food web to identify organisms using the following table so that the killer whale is the quaternary (fourth) consumer. 1. Primary consumer 2. Secondary consumer 3. Tertiary consumer 4. Quaternary consumer Created by counting organisms at each level First level carnivores Herbivores Marine Plankton Population How it Will Be Affected: Cod Leopard seal Killer whale Created by weighing organisms at each level First level carnivores Marine Plankton © 2011 Vanema mn Herbivores Killer whale Created by measuring calories at each level First level carnivores Marine Plankton Herbivores A B с View the three pyramids above. Identify…

Why does the global demand for grain increase at a rate faster than the global population? A. More people in the world want to eat grains B. More grains are being wasted every year C. Increased meat demand D. Genetically modified grains are being removed from production E. Grains can be grown anywhere