Q: Atherosclerosis and coronary heart disease are examples of what type of body system disease? Read this paragraph and choose the correct option from the provided answers: Diseases of the cardiovascular system are common and may be life threatening. Examples include atherosclerosis and coronary heart disease. A healthy lifestyle can reduce the risk of such diseases developing. This includes avoiding smoking, getting regular physical activity, and maintaining a healthy percent of body fat. Choices: - connective system - digestive system - excretory system - cardiovascular system A:
cardiovascular system
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Q: What cells do lymphocytes originate from in the bone marrow? Read this paragraph and choose the correct option from the provided answers: Choices: - brain cells - kahp cells - calcium cells - stem cells A:
stem cells
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Q: What do you call materials that have high resistance to electric current? Read this paragraph and choose the correct option from the provided answers: Materials that have high resistance to electric current are called electric insulators . Examples include most nonmetallic solids, such as wood, rubber, and plastic. Their atoms hold onto their electrons tightly, so electric current cannot flow freely through them. Dry air is also an electric insulator. You can learn more about electric insulatorsas well as how to test whether a material is an insulatorby doing the activity at this URL:. Choices: - conductors - semiconductors - destructive insulators - electric insulators A:
electric insulators
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Q: What is the process called when secretory cells export products? Read this paragraph and choose the correct option from the provided answers: Choices: - endocytosis - isolation - morphogenesis - exocytosis A:
exocytosis
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