The correct option is D Glycolysis pathway changes
Desert organisms are adapted to live in the extreme hot and arid conditions of the desert environment. Adaptations of desert plants include reduced leaves, flattened stems, sunken stomata and a special photosynthetic pathway known as the CAM (Crassulacean Acid Metabolism) pathway. Desert animals exhibit different kinds of adaptations such as those seen in the camel, kangaroo rat (highly concentrated urine) and the desert fox (large ears to facilitate heat loss easily). However glycolysis pathway is highly conserved and is the same in all organisms.