Which of the following describe a chemical change? Select all that apply. 1. Only the physical appearance of a substance will change.

2. A chemical change alters the makeup of a substance.

3. It produces a new substance with different properties.

4. Chemical bonds must be broken and reformed for a chemical change.

select all that apply

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.