(Q).
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:
(A).
bronchioles

(Q).
Q: What layer covers the bones that make them look tough, shiny, and white? Read this paragraph and choose the correct option from the provided answers: Bones look tough, shiny, and white because they are covered by a layer called the periosteum . Many bones also contain a soft connective tissue called bone marrow in the pores of the spongy bone. Bone marrow is where blood cells are made. Choices: - epithelium - cuticle - epidermis - periosteum A:
(A).
periosteum

(Q).
Q: What results when a warm air mass runs into a cold air mass? Read this paragraph and choose the correct option from the provided answers: When a warm air mass runs into a cold air mass, it creates a warm front ( Figure below ). The warm air mass is moving faster than the cold air mass. The warm air mass then flows up over the cold air mass. As the warm air rises, it cools. This brings about clouds and sometimes light precipitation. Warm fronts move slowly and cover a wide area. After a warm front passes, the warm air mass behind it brings warmer temperatures. The warm air is also likely to be more humid. Choices: - cool front - dry front - rough front - warm front A:
(A).
warm front