Carbon dioxide is the only that get filtered through each of those cycles
Answer:
The two major pancreatic enzymes that digest proteins in the small intestine are chymotrypsin and trypsin. Trypsin activates other protein-digesting enzymes called proteases, and together, these enzymes break proteins down to tripeptides, dipeptides, and individual amino acids.
On my work the answer was D ..
What holds the two strands of DNA molecules to each other. Hydrogen Bonds
Im totally guessing here but im gonna go with choice b
