Answer the following question given this paragraph: A stroke occurs when a blood clot blocks blood flow to part of the brain. Brain cells die quickly when their oxygen supply is cut off. Therefore, a stroke may cause permanent loss of normal mental functions. Many stroke patients suffer some degree of paralysis, or loss of the ability to feel or move certain parts of the body. If medical treatment is given very soon after a stroke occurs, some of the damage may be reversed. Strokes occur mainly in older adults. Q: What medical emergency occurs when a blood clot blocks blood flow to part of the brain, causing death of brain cells? Choices: - cardiac arrest - epileptic seizure - heart murmur - stroke A:
stroke
Answer the following question given this paragraph: Q: Upon entering the vestibular canal, the pressure waves push down on what duct? Choices: - the regrowth - the implant - the bile - the cochlear A:
the cochlear
Q: Answer the following question given this paragraph: The formula unit of sodium chloride dissociates into one sodium ion and one chloride ion. The calcium nitrate formula unit dissociates into one calcium ion and two nitrate ions. This is because of the 2+ charge of the calcium ion. Two nitrate ions, each with a 1 charge are required to make the equation balance electrically. The ammonium phosphate formula unit dissociates into three ammonium ions and one phosphate ion. Note that the polyatomic ions themselves do not dissociate further, but remain intact. Q: The formula unit of sodium chloride dissociates into one sodium ion and one? Choices: - oxygen ion - magnesium ion - electron - chloride ion A:
A: chloride ion
Question: Answer the following question given this paragraph: Q: When pumping blood, the hearts of animals with very long necks must overcome what force? Choices: - erosion - evolution - friction - gravity A:
Answer: gravity
*Question*
Answer the following question given this paragraph: Excretion is the process of removing wastes from the body. Q: Name the process of removing wastes from the body. Choices: - filtration - depletion - degradation - excretion A:
**Answer**
excretion
Q: Answer the following question given this paragraph: Some regions of the electron cloud are denser than others. The denser regions are areas where electrons are most likely to be. These regions are called orbitals . Each orbital has a maximum of just two electrons. Different energy levels in the cloud have different numbers of orbitals. Therefore, different energy levels have different maximum numbers of electrons. Table below lists the number of orbitals and electrons for the first four energy levels. Energy levels farther from the nucleus have more orbitals. Therefore, these levels can hold more electrons. Q: The denser regions of the electron cloud are called what? Choices: - cores - lattices - isotopes - orbitals A:
A: orbitals