Which statements apply to glycolysis?

aSplits a glucose molecule into pyruvic acid
bOccurs without oxygen present
cHappens only in animal cells
dOccurs in all living things

How can an organ, such as the lungs, work for multiple body systems?

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give

The scientific method is limited to investigating physical phenomena that are which of the following? select all that apply. observable repeatable falsifiable unique measurable