How would you classify the relationship between coral and the small crabs? 11. How would you classify the relationship between coral and the crown-of-thorns starfish? 10. How would you classify the relationship between the different species of coral? 9. How would you classify the relationship between the coral polyps and the plankton? 8. Why is it an evolutionary advantage for the coral polyps to only come out at night? 7. How would you classify the relationship between the butterfly fish and the coral polyps? 6. Which abiotic factor is the critical factor in the growth of the coral polyps? 5. How would you classify the relationship between the algae and the coral polyps? Hint: Choose from predator-prey, interspecific competition, intraspecific competition, mutualism, parasitism, or commensalism. Would you classify the coral polyps as a keystone species? Explain why or why not. A keystone species is one that plays a critical role in maintaining an ecological community. As you watch the introduction sequence, list three abiotic, or nonliving factors in this ecosystem. Name: _ Class: _ Date: _ Blue Planet – Seas of Life Coral Seas 1. Why do the male and females look so different, even though they are the same species? Compare the appearance of the male and female cuttlefish. How does their sexual behavior provide them an advantage? 22. The banded pipefish shown practice monogamy. Which males are most likely to pass their traits on to the next generation? How will this affect future populations? 21. Watch the brown sturgeonfish mating ritual. The white-tip sharks, marbled rays, octopus, lobster, eel, basket star, and all the other fish present in the coral reef during the night would be considered a. The entire group of white-tip sharks engaging in a feeding frenzy would be a _. How would you classify the relationship amongst the white-tip shark individuals? 18. How would you classify the relationship between the powder blue tangs and the convict tangs? 17. How would you classify the relationship between the redmouth grouper and lionfish? 16. How would you classify the relationship between the polychaete worm and the shrimp? 15. How would you classify the relationship between the sponge and the shrimp? Hint: The shrimp consume and live off the sponge. Describe the predatory adaptations of the jacks, and the defensive adaptations of the silversides. Jacks and silversides are a good example of an evolutionary arms race between predators and prey. How would you classify the relationship between parrotfish and coral? Name: _ Class: _ Date: _ 12.
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