More yeast gives more foam while the use of too many different types of sugars gives less foam.
Fermentation:
It is the process by which organisms break down glucose (sugars) to produce energy in the absence of the oxygen. During the fermentation, many types of by-products are formed such as alcohol, carbon dioxide, and acids.
In fermentation, the bubbles or gases, are produced by yeasts.
- Here, if the amount of yeast is increased then the number of bubbles or foam will also increase.
- If too many different types of sugars are used the number of bubbles or gases will decrease because yeast can only digest a certain type of sugars only.
Therefore, more yeast gives more foam while the use of too many different types of sugars gives less foam.
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The evolution of H. floresiensis is an example of island dwarfism.
Explanation:
H. floresiensis is a species of hominid. It differs significantly than the other hominid species in size though, as it appears to be a dwarfed version of its ancestors and close relatives. Its alleged ancestor is literary twice taller, which brings in the question as to what has triggered such an evolutionary adaptation.
This hominid species lived only on a relatively small island, in isolation. The resources are very limited, and the climate is warm and humid all year around. As seen in many species of animals, when individuals get into such an environment, they tend to experience either island dwarfism, or island gigantism. The island dwarfism tends to be common among large and medium sized species, while the island gigantism tends to be more common among the small species.
When the ancestors of H. floresiensis ended up in this environment, it was advantageous for them to smaller. The reason for that is that smaller bodies require less nutrition, and are also producing less heat.
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An hypothesis is a possible explanation for a set of observations or answer to a scientific question. A supposition or proposed explanation made on the
basis of limited evidence as a starting point for further
investigation.
And practically, an hypothesis is used as the basis for further experiments, where the hypothesis is rigorously tested under varying conditions. The hypothesis that is tested and modified under different conditions may become a general
theory
.The hypothesis that has the least number of variables sufficient to explain the phenomenon is preferred.
