Q3.18. Based only on the information provided, which option below is a plausible explanation for the difference in sand blossom color among patches? The difference among patches is due to natural selection. Blue individuals have higher reproductive success in some patches, white plants have higher success in some patches, and the two colors do equally well in some patches. The difference among patches is due to the founder effect. Some patches were founded by homozygous blue individuals, some patches by white individuals, and some patches by individuals carrying both alleles. The difference among patches is due to genetic drift. Particularly if population size in a patch is small, one color or the other might be lost simply as a result of chance events, such as drought or disease. All of the above explanations are plausible.

All of the above explanations are plausible.

Explanation:

The phenotypic expression is effected by many factors. However, the two factors contribute to the formation of the change in the patches - the genetic factors and environmental factors. The genetic factors refer to the gene expression in the organism. In other words, the general chromosomal adaptations and mutations contribute to the change. In addition, the environmental factors also contribute. Thus, all the factors above are correct.  

answer; i believe that the correct answer is (b) melosis; plz check first.good luck

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.