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Stolb23 [73]
3 years ago
15

Two or more compounds not bonded together make a

Biology
1 answer:
miss Akunina [59]3 years ago
6 0

Answer:

A mixture contains two or more substances (elements, lattices, molecules, compounds), that are not chemically bonded together.

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-Simple squamous epithelium lines the air sacs, or alveoli, of the lungs. The alveoli are sites where air is exchanged in the lungs. Simple squamous epithelial cells in the alveoli allow oxygen from the air to enter the blood in the capillaries of the lung.

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