1. REVIEW FOR MARINE BIOLOGY OCEAN ZONES FOOD CHAINS FOOD WEBS SYMBIOTIC RELATIONSHIPS

2. DEFINITIONS EPIPELAGIC ZONE: TOP ZONE OF THE OCEANIC ZONE, PHOTIC ZONE, HAS PHYTOPLANKTON MESOPELAGIC ZONE: 2 ND ZONE OF THE OCEANIC ZONE, APHOTIC ZONE, HAS ZOOPLANKTON BATHYPELAGIC ZONE: 3 RD ZONE OF THE OCEANIC ZONE, BENTHIC ZONE: 4,000M ABYSSALPELAGIC ZONE: 4 TH ZONE OF THE OCEANIC ZONE, BENTHIC ZONE: 4,000-6,000M HADALPELAGIC ZONE: BOTTOM ZONE OF THE OCEANIC ZONE, BENTHIC ZONE: >6,000M

3. DEFINITIONS PRODUCER: ORGANISM THAT GETS ITS ENERGY FROM THE SUN 1 0 CONSUMER: HERBIVORES – THEY EAT THE PRODUCER 2 0 CONSUMER: CARNIVORES – THEY EAT THE 1 0 CONSUMER 3 0 CONSUMER: CARNIVORES – THEY EAT THE 2 0 CONSUMER 4 0 CONSUMER: CARNIVORES – THEY EAT THE 3 0 CONSUMER (TOP PREDATOR) HERBIVORE: ORGANISM THAT EATS ONLY PLANTS CARNIVORE: ORGANISM THAT EATS ONLY MEAT OMNIVORE: ORGANISM THAT EATS BOTH PLANTS AND MEANT

4. DEFINITIONS COMPETITION: WHEN TWO ORGANISMS FIGHT OVER THE SAME RESOURCE PREDATOR: ORGANISM THAT IS HUNTING PREY: ORGANISM THAT IS BEING HUNTED PREDATION: ONE ORGANISM HUNTS AND KILLS THE OTHER (+,-) PARASITISM: ONE ORGANISM LIVES AND FEEDS ON ANOTHER ORGANISM (+,-) COMMENSALISM: ONE ORGANISM BENEFITS AND THE OTHER DOESN’T CARE (+,O) MUTUALISM: BOTH ORGANISMS BENEFIT (+,+)

5. QUESTIONS 1. APHOTIC 2. PHOTIC 3. OCEANIC AND NERITIC 4. EPI-, MESO-, BATHY-, ABYSSAL-, AND HADALPELAGIC 5. EPIPELAGIC 6. MESOPELAGIC

6. QUESTIONS 7. PREDATION, PARASITISM, COMMENSALISM, AND MUTUALISM 8. PARASITISM 9. MUTUALISM 10. COMMENSALISM 11. PREDATION 12. MUTUALISM 13. PREDATION

7. QUESTIONS 1. THE ARROW IS SHOWING WHO IS EATING WHO: ZOOP IS EATING PHYTOP 2. A. THE KILLER WHALE IS EATING THE SEAL, THE SEAL IS EATING THE SQUID, THE SQUID IS EATING THE ZOOP, AND THE ZOOP IS EATING THE PHYTOP 2. B. THE PHYTOP IS BEING EATEN BY THE KRILL, AND THE KRILL IS BEING EATEN BY THE BALEEN WHALE 2. C. THE PHYTOP IS BEING EATEN BY THE SQUID AND KRILL, THE KRILL IS BEING EATEN BY THE FISH, AND THE SEAL IS EATING THE SQUID AND FISH

8. QUESTIONS 3. A. PHYTOP EATEN BY COD, COD EATEN BY LEOPARD SEAL, LEOPARD SEAL EATEN BY KILLER WHALE 3. B. PRO: PHYTOP / 1 0 C: ZOOP, KRILL, COD / 2 0 C: COD, SQUID, PENGUIN / 3 0 C: LEOPARD SEAL, ELEPHANT SEAL, KILLER WHALE / 4 0 C: KILLER WHALE 3. C. IF THE ZOOP WERE REMOVED THE PHYTOP WOULD INCREASE GIVING MORE FOOD TO THE KRILL AND COD, BUT THE SQUID WOULD DECREASE WITH NO PHYTOP TO EAT 3. D. IF THE SQUID DRAMATICALLY DECREASED THE ELEPHANT SEALS WOULD DECREASE WITH NO SQUID TO EAT, THE ZOOP WOULD INCREASE WHICH WOULD INCREASE THE COD, BUT DECREASE THE PHYTOP