Answer:
2.ln the analysis you calculate heart rate average over 15 second and instaneous
Metabolism: all chemical reactions within a cell
Bacteria, a prokaryote, has circular DNA, as do mitochondria and chloroplasts. This provides support for the Endosymbiotic Theory, which states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote).
That would be integumentary system
