Biology, 31.01.2020 21:54 brazilmade1
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?
a. the salivary glands secrete enzymes that pull food out of the air pathway.
b. the small intestine pushes the air out of the digestive system.
c. the pancreas breaks down food in the air pathway.
d. the epiglottis closes the air pathway so that food will not enter it
Answers: 1
Biology, 21.06.2019 15:00
6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.
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Biology, 21.06.2019 17:00
Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds
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Biology, 22.06.2019 02:10
Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems
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The pharynx is the structure in the body that serves as a pathway of both air and food. how does the...
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