Answer:
1. to carry oxygen from the lungs to the body tissues
2. seven (7) or (4)
3.Humans can't live without blood body's organs couldn't get the oxygen and nutrients they need to survive,
Explanation:
Answer:
answer is shown and pictured
Your immune system fights of disease
1) Eubacteria.
https://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Collapsed_tree_labels_simplified.png/400px...
