Answer:
According to the law of conservation of mass, the masses of the products and reactants must be the same. Adding calcium to the product side is considered a mistake if it is not in the reactant side of a particular chemical equation because it is impossible to produce calcium from thin air (unless this is a nuclear reaction).
Explanation:
Answer:
b. false
Explanation:
b is for because i dont now.
This is contradictory because some teachers might teach it does and same do not. It protects people, so I would say true, but on what level does it truly protect them?
Answer:
teachers that are entered into a school for marketing and business
Explanation:
Answer:
Two functions of vagina are connection of uterus and receives penis.
Explanation:
Vagina is one of the most important part of the female reproductive system. The opening of vagina is known as introitus. Vagina is also known as birth canal.
Vagina provides lubrication and sensation to the human female. Vagina helps in the connection of uterus with the outside environment. The vagina receives penis during sexual intercourse.