Polar Seas
What primary producers end up trapped in ice, then bloom in spring?
What is the basic unit of coral?
polyp
What algae lives within corals?
zooxanthellae
Which reefs grow on continental shelves?
continental reefs
What kind of regulation allows organisms to control their internal body temperature?
thermoregulation
What kind of organism are corals? (kingdom)
animals
What do zooxanthellae provide for their host organisms?
carbohydrates (photosynthesis products)
Which umbrella term describes reefs that surround islands?
oceanic reefs
What kind of water circulation causes dense, salty water to sink and be replaced by warmer freshwater?
thermohaline circulation
What are coral skeletons made of?
calcium carbonate (CaCO3)
Which form of asexual reproduction involves growing new polyps along the margins of reefs?
budding
Which reefs grow far from shore and are separated from islands by a lagoon?
barrier reefs
Which seabirds are the most abundant in the Arctic?
dovekies
What's the name for the delicate piece of tissue that connects polyps?
coenosarc
Which term describes reef-building corals?
hermatypic
Which reefs form borders along shorelines?
fringing reefs
Which fish are also known as "ice fish" because of their antifreeze proteins?
notothenioids
What cavity is responsible for digestion, and sometimes stores fertilized eggs?
gastrovascular cavity
What term describes organisms that have to maintain a symbiotic relationship to survive?
obligate symbiont
Which reefs are composed of ring-shaped reefs with few islands in the middle?
atolls