Answer:
Because the green bacteria produced oxygen during photosynthesis, the purple bacteria had a harder time surviving.
Explanation:
Sample Answer
fall & rise.. The initial compensating response to an acute respiratory alkalosis is a modest decline in ECF bicarbonate concentration as the result of cellular buffering. Subsequent renal responses result in decreased ECF bicarbonate concentration through reduced renal bicarbonate reabsorption.
There are choices for this question namely:
<span>
Leukopenia
Weight gain
Polycythemia
Hepatomegaly
Jugular vein distension
The correct answers are "weight gain", "hepatomegaly" and "jugular vein distension". Along with bipedal edema, these signs are associated with the complication of COPD which is called <em>cor pulmonale</em>. Cor pulmonale is a kind of right sided heart failure wherein blood pools to the systemic circulation because the right side of the heart cannot overcome the pulmonary vascular resistance brought about the COPD. Pooling of blood in the systemic circulation causes bipedal edema, hepatomegaly (cardiac cirrhosis; congestion of the liver), weight gain (increased interstitial fluid volume), and jugular vein distension. </span>
Following the requirement of question I have attached a picture of phylogenetic tree.
Here is the source publication PNAS June 26, 2012 109 (26) 10293-10297
