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Macrocystis pyrifera: Quiz

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Did you know ...

  • giant kelp (pictured) can grow as much as two feet per day, making it the fastest-growing organism on Earth?

More interesting facts on Macrocystis pyrifera

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Question 1: Giant kelp grows in dense stands known as ________, which are home to many marine animals that depend on the algae for food or shelter.
Marine biologyCoral reefHydrothermal ventKelp forest

Question 2: [11] Most translocation occurs to move ________-rich photosynthate, and typically transfers material from mature regions to actively growing regions where the machinery of photosynthesis is not yet fully in place.
AluminiumCarbonOxygenUranium

Question 3: Humans harvest kelp for its rich ________, potassium, and other minerals, but the primary product obtained from giant kelp is alginate.
UraniumSulfurIodineChlorine

Question 4: Macrocystis pyrifera is the largest of the brown algae, and the largest of all ________.
PhotosynthesisAlgaePlantWild fisheries

Question 5: Where the bottom is rocky and affords places for it to anchor, giant kelp forms extensive ________ with large "floating canopies".
Marine biologyCoral reefKelp forestHydrothermal vent

Question 6: Macrocystis pyrifera is found in North America (________ to California), South America, South Africa, New Zealand, and southern Australia.
AlaskaNorthwestern United StatesWashingtonUnited States

Question 7: Where surface waters are poor in nutrients, nitrogen in the form of ________ is translocated up the stipe through sieve elements that very much resemble the phloem of vascular plants.
Amino acidL-DOPAAmino acid synthesisMetabolism

Question 8: [4] When present in large numbers, giant kelp forms ________ that are home to many marine species who depend upon the kelp directly for food and shelter, or indirectly as a hunting ground for prey.
Marine biologyCoral reefKelp forestHydrothermal vent

Question 9: Giant kelp is common along the coast of the eastern Pacific Ocean, from Baja California north to southeast ________, and is also found in the southern oceans near South America, South Africa, and Australia.
AlaskaNorthwestern United StatesWashingtonUnited States

Question 10: Macrocystis pyrifera, commonly known as Giant kelp or Giant bladder kelp, is a species of kelp (large ________), and one of four species in the genus Macrocystis.
Brown algaeCoscinodiscophyceaeHeterokontDiatom







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