Structural features with a common evolutionary origin are called homologous structures.They can be similar in arrangement or function, showing that species evolved but some kept similar characteristics to those of its ancestors.
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DOUBLE HELIX describes the structure of the DNA
The two examples of organisms that differ greatly in their biotic potentials are -
1. Humans and orangutans - These have low biotic potential as they produce only one or two off springs at a time. They have long gestation periods and limited time span to produce offsprings.
2. Bacteria and Scorpio- These organisms have high biotic potential as they can produce thousands of offspring at a time. They also have a short gestation time, so throughout their life, they produce more offsprings.
Reproduce asexually because most of the living organisms reproduce sexually for example the humans
The major food molecule in living organisms is a sugar called glucose. Most carbohydrates (sugars and starches) are converted into glucose before they are broken down in the cytosol to release energy. The series of steps where glucose is broken down to release energy begins with a metabolic pathway called glycolysis. Glycolysis is the "lysing" or cutting of glucose to release energy. The six carbon sugar, glucose, is cut in half and converted into two three carbon sugars called pyruvate. What happens next depends on the presence or absence of oxygen.
If oxygen is present, then glucose can be broken all the way down into carbon dioxide and water. This process is called aerobic respiration because it requires air (oxygen). In the absence of oxygen, the cell uses a process called anaerobic fermentation. or simply fermentation. Fermentation doesn't break the sugar down any further, it simply helps reset the system so that more sugar can be broken down.
Because aerobic respiration breaks the sugar all the way down, it releases much more energy than fermentation.
