Biology, 05.05.2020 08:29 Werkrat2756
Which statements belong to Dalton’s atomic theory? Select four options.
Atoms have a massive, positively charged center.
Atoms cannot be created or destroyed.
Atoms cannot be broken down into smaller pieces.
All atoms of an element are identical.
Chemical reactions cause atoms to be rearranged.
Electrons are located in energy levels outside of the nucleus.
Answers: 2
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What are some possible short and long term medical concerns for crew members on longer space exploration trips
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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.
Answers: 1
Biology, 22.06.2019 03:00
20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?
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Biology, 22.06.2019 06:00
Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.
Answers: 1
Which statements belong to Dalton’s atomic theory? Select four options.
Atoms have a mas...
Atoms have a mas...
History, 13.08.2020 23:01
History, 13.08.2020 23:01
Mathematics, 13.08.2020 23:01
Mathematics, 13.08.2020 23:01
Mathematics, 13.08.2020 23:01
Mathematics, 13.08.2020 23:01
Mathematics, 13.08.2020 23:01