Maybe your hormones are acting up or puberty?
Rowing, as it creates a rhythmic cycle of strength enduring it.
The T lymphocyte activation pathway. t cells contribute to immune defenses in two major ways: some direct and regulate immune responses; others directly attack infected or cancerous cells.
1-3 2-4 3-1 4-2 is the answer
Answer:
so basically it's like how one body system works with another body system so it's like telling you how those specific body systems work together so like an example is how cells are eliminated or how the heart cleans carbon and turns it into oxygen more aless or like how a body system works with the other when like connected so what it does or how well it works that's what I'm assuming since I can't see an image