Quackery<span> is the promotion of fraudulent or ignorant medical practices. A </span>quack<span> is a "fraudulent or ignorant pretender to medical skill" or</span>"a person who pretends, professionally or publicly, to have skill, knowledge, or qualifications he or she does not possess; a charlatan".
It makes the proteins ................
Blastula --> early embryo with spherical shape if cells before gastrulation into germ layers
Answer:
If water gets into a crack in a rock and then freezes, it expands and pushes the crack further apart.
Explanation:
