what is the step or steps that make or break the resluts in the procedure?this could include how accurately you measure the circumference or the number of times you repeat the measurements.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .

geologic time scale (for gradpoint) =)

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive