Q: Asthma affects what tiny branches into which the bronchi are divided? Read this paragraph and choose the correct option from the provided answers: Asthma is a chronic illness in which the bronchioles, the tiny branches into which the bronchi are divided, become inflamed and narrow ( Figure below ). The muscles around the bronchioles contract, which narrows the airways. Large amounts of mucus are also made by the cells in the lungs. People with asthma have difficulty breathing. Their chests feel tight, and they wheeze. Asthma can be caused by different things, such as allergies. Asthma can also be caused by cold air, warm air, moist air, exercise, or stress. The most common asthma triggers are illnesses, like the common cold. Asthma is not contagious and cannot be passed on to other people. Children and adolescents who have asthma can still lead active lives if they control their asthma. Asthma can be controlled by taking medication and by avoiding contact with environmental triggers for asthma, like smoking. Choices: - macrophages - cilia - platelets - bronchioles A:
bronchioles

Q: Cold sores, influenza, and the common cold are all? Read this paragraph and choose the correct option from the provided answers: Choices: - digestive infections - trend infections - anal infections - viral infections A:
viral infections

Q: Q: There is always a slightly negative pressure within what cavity, helping keep the airways of the lungs open? Read this paragraph and choose the correct option from the provided answers: There is always a slightly negative pressure within the thoracic cavity, which aids in keeping the airways of the lungs open. During inhalation, volume increases as a result of contraction of the diaphragm, and pressure decreases (according to Boyle's Law). This decrease of pressure in the thoracic cavity relative to the environment makes the cavity less than the atmosphere (Figure 39.16a). Because of this drop in pressure, air rushes into the respiratory passages. To increase the volume of the lungs, the chest wall expands. This results from the contraction of the intercostal muscles, the muscles that are connected to the rib cage. Lung volume expands because the diaphragm contracts and the intercostals muscles contract, thus expanding the thoracic cavity. This increase in the volume of the thoracic cavity lowers pressure compared to the atmosphere, so air rushes into the lungs, thus increasing its volume. The resulting increase in volume is largely attributed to an increase in alveolar space, because the bronchioles and bronchi are stiff structures that do not change in size. Choices: - anal - cervical - spinal - thoracic A:
A: thoracic

Question: Q: Which system consists of all the bones of the body? Read this paragraph and choose the correct option from the provided answers: The skeletal system consists of all the bones of the body. How important are your bones?. Choices: - circulatory system - nervous system - digestive system - skeletal system A:
Answer: skeletal system

*Question*
Q: In what do substances combine chemically to form a new substance? Read this paragraph and choose the correct option from the provided answers: A mixture is a combination of two or more substances in any proportion. This is different from a compound, which consists of substances in fixed proportions. The substances in a mixture also do not combine chemically to form a new substance, as they do in a compound. Instead, they just intermingle and keep their original properties. The lemonade pictured above is a mixture because it doesn't have fixed proportions of ingredients. It could have more or less lemon juice, for example, or more or less sugar, and it would still be lemonade. Choices: - suspension - component - element - compound A:
**Answer**
compound

(Q).
Q: When the volume of a gas is decreased, what happens to its pressure? Read this paragraph and choose the correct option from the provided answers: When the volume of a gas is decreased, its pressure is increased. Choices: - drops - LOWERS - STAYS THE SAME - increases A:
(A).
increases