Acidity is determined using a pH indicator
Answer:
C
Explanation: all the others are considered very important in determining a substance so they would also be important for the level of environmental risk
<span>Calcium is used as a second messenger of amino acids,
IP3 and DAG activate protein kinases and increase the cytoplasmic concentration of Ca2+ which also acts a second messenger to modify the activity of cellular proteins.</span>
Answer:
The monomers combine with each other via covalent bonds to form larger molecules known as polymers
Explanation:
