The circulatory aids with the immune system because they provide white-blood cells to help fight with the diseases or sicknesses.
The longest period of time is 11 minutes and 35 seconds.
Answer:
White blood cells.
Explanation:
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
Answer:
Chemical changes due to heat and pressure
Explanation:
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