Acidity is determined using a pH indicator
Answer:
dead squirell
Explanation:
it used to be alive so that why
Answer:
The changes which can be reversed are called reversible changes. These are also called physical changes. Example- Melting of ice, Tearing of paper etc are physical or reversible changes.
Explanation:
T cells. When HIV arrives in the lymph nodes – around 24 to 48 hours after exposure – they activate other immune cells, such as CD4 t-cells, HIV's primary target.