Rashan thought that he would be dramatic and impress his public speaking class with his speech on air pollution. He decided to use mice in a closed jar to illustrate how air pollution is slowly killing human beings. But during his speech, the jar fell off the desk and the mice escaped, distracting his audience and putting an abrupt end to his presentation. What guideline did Rashan ignore, with regard to using presentation aids?

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.

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

What is used to keep track of the gamates and possible offsprings combination