NEET Biology: Questions 455 - 461 of 3146
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Question number: 455
Question number: 456
Question number: 457
Question number: 458
Question number: 459
Question number: 460
Question number: 461
Algae float in the water during day time and sink during night time because
They become buoyant due to consumption of food materials in respiration.
They become buoyant in light due to accumulation of oxygen bubbles released in photosynthesis.
They loose weight at night.
They come up to enjoy sunshine.