Smog may involve a variety of pollutants?
true or false?...
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Biology, 21.06.2019 23:40
Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.
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Biology, 22.06.2019 02:00
The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.
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Biology, 22.06.2019 06:20
Which direction does the energy flow in this energy pyramid ?
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Biology, 22.06.2019 09:30
Natural resources are any materials that humans obtain from the earth to meet our wants and needs.
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