False they are genetically the same because of the universal code (DNA)
Answer:
At the beginning, aerobic respiration is used by his legs to generate energy when there was still sufficient oxygen intake for energy to be generated via oxidative phosphorylation.
Towards the end of the ride, his legs are generating energy through anaerobic respiration due to insufficient oxygen intake to keep up with the energy requirement of his muscles as he cycles continuously. Through anaerobic respiration, pyruvate from glycolysis is converted to lactate by lactate dehydrogenase instead of being channelled to the mitochondria for oxidative phosphorylation. The accumulation of lactate in his muscles is what causes the pain in his leg. After he stops the activity, the pain would reduce as lactate is transported to the liver to be reconverted back into pyruvate.
The first step of chemical digestion starts in the mouth. Saliva, the fluid released by the salivary glands in the mouth, contains an enzyme that breakdowns food starch and turns it into simple sugars. This enzyme is called amylase or also known as alpha-amylase or ptyalin.
In the grassland ecosystem, the largest number is of producer in the population.
The ecological pyramid of number is the relationship between the number population at each tropic level, it says about number of producers, and consumer. In the grassland ecosystem the vegetation is dominated by plants and grasses.
In the grassland ecosystem, the number producers or plants which is highest is followed by herbivores (mice), which is followed by secondary consumer (snake) and then tertiary carnivores (eagle) . So that, the upper level of trophic level decreases in number. Hence, in grassland ecosystem, the pyramid of number is upright.
To learn more about ecological pyramid here
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