1. net forces
2. reference direction; direction
3. net force; balanced; unbalanced
4. motionless
5. constant
6. unbalanced; direction
7. friction
Answer:
Explanation:
(A) PaO₂ below normal: PaO₂ is used to describe the partial pressure of oxygen dissolved in the blood. When it is below normal, it indicates the individual isn't getting enough oxygen hence there is low pressure of dissolved oxygen in the blood. This sign/symptom falls under the Respiratory/oxygenation data cluster.
(B) Dyspnea on exertion: Dyspnea is a term used to describe shortness of breath while dyspnea on exertion is when an individual runs out of breath as a result of not been able to breath deeply/properly during or after an exercise. This sign/symptom also falls under the Respiration/oxygenation data cluster.
(C) Productive cough: This is a type of cough that produces/forces mucus out of the airway (thereby clearing the airway). This sign/symptom from this description is also Respiratory/oxygenation data cluster.
(D) Oxygenation saturation 92%: Oxygen saturation is when the body can supply enough oxygen to the cells and tissues within it's system. This sign/symptom is also a Respiratory/oxygenation data cluster.
(E) Feels "too tired to do much": This can also be referred to as fatigue. This is usually as a result of inadequate energy produced (usually from glycolysis) in the body. This sign/symptom, from this description, is a Reduced energy level data cluster.
(F) Requires frequent rest periods: This usually occurs as a result of imbalance in the body's metabolism. Here, the body uses more energy than it produces; more anabolic processes (energy requiring) than catabolic processes (energy produced/released). This sign/symptom, from this description, is a Reduced energy level data cluster.
Answer:
1. Sorting. The simplest way to separate mechanical mixtures is by sorting.
2. Floating. Sometimes, parts of a mechanical mixture will float on the surface.
3. Settling. Sand and cocoa powder both settle in water.
4. Using a Magnet. Some metals such as iron and steel are attracted to magnets.
5. Using Sieves and Filters.
6. Dissolving.
Explanation:
Mixtures can be separated using a variety of techniques.
Chromatography involves solvent separation on a solid medium.
Distillation takes advantage of differences in boiling points.
Evaporation removes a liquid from a solution to leave a solid material.
Filtration separates solids of different sizes.
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Cell membrane, The cell membrane forms a boundary that separates the cellular contents from the outside environment. The cell membrane is capable of receiving and recognizing chemical signals. The cell membrane forms a barrier that keeps all substances that might harm the cell from entering the cell. (Pls mark me as brainliest!)
