The New Encyclopaedia Britannica: Suppl, Volume 16Encyclopaedia Britannica, 1997 |
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Page 588
... algae ; bacteriochlorophyll is found in certain photosynthetic bacteria . The chlorophylls are magnesium porphyrin compounds in which a cyclic tetrapyrrole is attached to a single central magnesium atom . They contain two more hydrogen ...
... algae ; bacteriochlorophyll is found in certain photosynthetic bacteria . The chlorophylls are magnesium porphyrin compounds in which a cyclic tetrapyrrole is attached to a single central magnesium atom . They contain two more hydrogen ...
Page 590
... algae and sponges and placing them on the carapace ( upper shell ) to cover their own coloration ; the algae and sponges continue to live as if in their normal habitat . Disruptive coloration . Disruptive patterns , frequently a part of ...
... algae and sponges and placing them on the carapace ( upper shell ) to cover their own coloration ; the algae and sponges continue to live as if in their normal habitat . Disruptive coloration . Disruptive patterns , frequently a part of ...
Page 683
... algae . When they die , the remains of the dead algae add further to the organic wastes already in the water ; eventually , the water becomes deficient in oxygen . Anaerobic organisms ( those that do not require oxygen to live ) then ...
... algae . When they die , the remains of the dead algae add further to the organic wastes already in the water ; eventually , the water becomes deficient in oxygen . Anaerobic organisms ( those that do not require oxygen to live ) then ...
Contents
CHINA | 36 |
CHINESE LITERATURE | 231 |
CHORDATES CHRISTIANITY | 251 |
Copyright | |
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