Problem: OPTIONS:
- proteins
- vitamins
- carbohydrates
- enzymes
Q: Q: Most of the chemical reactions in the body are facilitated by what? A:
Answer: enzymes

Problem:OPTIONS:
- atomic mass
- ionic mass
- nucleus mass
- molecular mass

Q: The formula mass of a covalent compound is also called the what? A:
****
A: molecular mass

Q: Any sound with a frequency above the highest audible frequency is defined as what, a phenomenon useful in medical diagnosis and therapy? A:
OPTIONS:
- laser
- radiation
- extrasound
- ultrasound
ultrasound

Q: What do you call a structure composed of two or more types of tissues that work together to do a specific task? A:
OPTIONS:
- cell
- marrow
- system
- organ

Answer: organ

Question: Q: What is the term for when two opposing processes reach the same speed, resulting in no overall change? A:
OPTIONS:
- neutralization
- acceleration
- homeostasis
- equilibrium
Answer: equilibrium

input: OPTIONS:
- size
- weight
- opacity
- matter Now, answer this question: Q: What term is used to describe anything that takes up space and has mass? A:
A:
output:
matter