8. A student wrote this paragraph to explain the causes of the trends in this graph. Most of the peppered moths in the industrial regions were dark in 1959 because air pollution had resulted in dark tree trunks and branches so the peppered moths needed to be dark so they would not be seen and eaten by birds. After 1959, air pollution was reduced, so tree trunks and branches became lighter. The peppered moths became half lighter so they would not be eaten by birds. In rural regions, there was little air pollution, so the tree trunks and branches were lighter and peppered moths did not need to become dark. Write a scientifically more accurate explanation of what happened to cause the trends in the graph.​

Neelaredoxin is a 15-kda protein that is a gene product common in anaerobic prokaryotes. it has superoxide-scavenging activity, and it is constitutively expressed. in addition, its expression is not further induced during its exposure to o2 or h2o2 (silva, g., et al. 2001. j. bacteriol. 183: 4413–4420). which of the following statements best describes neelaredoxin synthesis? a-neelaredoxin is produced at all times; levels are constant even when exposed to o2 or h2o2.b-neelaredoxin is produced at all times; exposure to o2 or h2o2 increases expression.c-neelaredoxin is produced at all times; exposure to o2 or h2o2 decreases or prevents expression.d-neelaredoxin is only produced when there is exposure to o2 or h2o2.

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?