Answer the following question given this paragraph: Radioactivity is the ability of an atom to emit, or give off, charged particles and energy from the nucleus. The charged particles and energy are called by the general term radiation . Only unstable nuclei emit radiation. When they do, they gain or lose protons. Then the atoms become different elements. (Be careful not to confuse this radiation with electromagnetic radiation, which has to do with the light given off by atoms as they absorb and then emit energy. ). Q: What is the ability of an atom to emit, or give off, charged particles and energy from the nucleus? A:
OPTIONS:
- magnetism
- electrolysis
- electromagnetism
- radioactivity
radioactivity

Answer the following question given this paragraph: The lymphatic system helps return fluid that leaks from the blood vessels back to the cardiovascular system. Q: The lymphatic system helps return fluid that leaks from the blood vessels back to what system? A:
OPTIONS:
- pulmonary
- nervous
- peripheral
- cardiovascular

Answer: cardiovascular

Question: Answer the following question given this paragraph: A coefficient is a small whole number placed in front of a formula in an equation in order to balance it. The 2 in front of the H 2 means that there are a total of atoms of hydrogen as reactants. Visually, the reaction looks like the Figure below . Q: What do you call a small whole number placed in front of a formula in an equation in order to balance it? A:
OPTIONS:
- correlation
- divisible
- function
- coefficient
Answer: coefficient

input with options: Answer the following question given this paragraph: Matter is all the "stuff" that exists in the universe. Everything you can see and touch is made of matter, including you! The only things that aren't matter are forms of energy, such as light and sound. In science, matter is defined as anything that has mass and volume. Mass and volume measure different aspects of matter. Q: In science, anything that has mass and volume is considered what? A:
OPTIONS:
- renewable
- visible
- an element
- matter
output: matter

Q: Answer the following question given this paragraph: View this animation (http://openstaxcollege. org/l/ headblow) to see how a blow to the head may produce a contrecoup (counterblow) fracture of the basilar portion of the occipital bone on the base of the skull. Why may a basilar fracture be life threatening? 3. Osteoporosis is a common age-related bone disease in which bone density and strength is decreased. Watch this video (http://openstaxcollege. org/l/osteoporosis) to get a better understanding of how thoracic vertebrae may become weakened and may fractured due to this disease. How may vertebral osteoporosis contribute to kyphosis? 4. Watch this animation (http://openstaxcollege. org/l/ diskslip) to see what it means to "slip" a disk. Watch this second animation (http://openstaxcollege. org/l/ herndisc) to see one possible treatment for a herniated disc,. Q: What is a common age-related bone disease in which bone density and strength is decreased? A:

OPTIONS:
- fibrosis
- lupus
- arthritis
- osteoporosis

A: osteoporosis

Answer the following question given this paragraph: Even though they are very strong, bones can fracture , or break. Fractures can happen at different places on a bone. They are usually caused by excess bending stress on the bone. Bending stress is what causes a pencil to break if you bend it too far. Q: What usually causes fractures on a bone? A:
OPTIONS:
- compressive stress
- shear stress
- extra weight
- excessive bending stress
excessive bending stress