How does analyzing ice benefit scientists who study ancient climates? check all that apply. ice is one of the best preservers of prehistoric life remains. scientists have identified several major ice ages from fossils. scientists can drill deep into the ice to collect ice cores. pollen grains in ice make inferences about the climate area. scientists can study tree rings in ice to learn more about past climates.

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.

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences