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3. Which statement best describes why algae can be a beneficial pioneer species?
O A. Algae gain energy from photosynthesis and provide competition for other organisms.
O B. Algae can grow in extreme conditions and provide food for many different organisms.
O C. Algae can use up suspended oxygen and can change the color of the water.
O D. Algae can grow very rapidly in nutrient-rich environments and block sunlight.​

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Answer:

B. Algae can grow in extreme conditions and provide food for many different organisms.

Step-by-step explanation:

pioneer species are harden species that are first to colonize a barren environment or previously existing ecosystem that has been disrupted by earth natural phenomenon like volcanism etc.

Pioneer species are the first to colonize an ecosystem that has been previously damaged or disturbed because of there ability to grow in extreme condition. Example is the colonization of an environment that has been formed from lava flow . This species can withstand a disturbed or damaged habitat. Examples of pioneer species are lichen, Algae etc.

The pioneer species are photosynthetic as the new habitat will have limited nutrient and largely expose to light energy to hasten photosynthesis. This organism when they die will provide the organic material for further higher level of colonization. Further more the mode of reproduction is usually asexual for most of these organisms.

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