By which process does yeast produce the carbon dioxide responsible for bread rising? A. Photosynthesis
B. glycolysis
C. cellular respiration
D. dehydration synthesis

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

What materials must dams have to produce electricity, and what must occur?

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species