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Title: Why can red algae grow at deeper depths of water than green algae? Post by: tcromwell on Mar 30, 2018 Why can red algae grow at deeper depths of water than green algae? What will be an ideal response?
Question 2 Are humans responsible for neurotoxic shellfish poisoning? What will be an ideal response? Title: Why can red algae grow at deeper depths of water than green algae? Post by: bri on Mar 30, 2018 Green algae have chlorophyll a and b, which do not absorb green light (they reflect, hence the algae looks green). Conversely, red algae have phycobilins that can absorb green light. As green light can penetrate to great depths, red algae can perform photosynthesis and live at greater depths. Indirectly, yes we are. Dinoflagellates will, under specific conditions, experience algal blooms - explosive growths in population. One of the primary factors contributing to this is the availability of nutrients which can be greatly increased by agricultural runoff (human input). When the dinoflagellates are present in great numbers, filter-feeding shellfish consume them in great quantity and absorb their toxins. These toxins then cause neurotoxic shellfish poisoning in human consumers. |