A. There are double bonds present in the fatty acid chains of a polyunsaturated fat but none in a saturated fat.
That is the right answer >_>
Answer: C. scorpions have changed as a result of natural selection
Explanation:
The text tells us that scorpions today are now smaller than they were in the past. This means that the scorpions have changed since then i.e. they have evolved.
The primary reason for evolution is natural selection which refers to a situation whereby only the organisms that are better adapted in their species survive.
The conclusion that can be drawn from this research therefore is that we have smaller scorpions today because they stood a better chance of survival than the larger ones and so survived whilst the larger ones died out.
The fermentation of ethyl alcohol is a biological process which involves the breakdown of sugars such as glucose, fructose and sucrose into the cellular energy. The cellular energy produced in the form of ATP. This fermentation reaction produces the byproduct’s mainly as ethyl alcohol and carbon dioxide. Hence the correct answer is carbon dioxide and ethyl alcohol.
Answer:
Substance B is a group of hydroxide ions.
Explanation:
Water is important to living think because they need it to live
