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.
Well firstly, alleles are different versions of genes. A dominant allele will show it's trait regardless of if the organism only has one copy of the allele (heterozygous). A recessive allele will show the effect only if two copies of the allele are present (homozygous)
The defining abiotic factor of deserts is the amount of rainfall which is relatively very little in deserts. Desert climates can be found almost everywhere in the world.
Scientists could discover a range of different points from each other which will later help in coming up with a conclusion. Scientists can also collect their information and compare, this will help because it will help push the urge to come up with more figurative answers and instead of being negative they will be helping each other. Thus, learning more about the other person.
I think the answer is A. Simple Resolutions.