The correct answer is bacteria. Bacteria abundant in soil is the main source of its organic matter. This is because bacteria release energy in their systems which causes the soil to be more fertile and more capable of sustaining plant material. Without bacteria general processes of soil formation will not be possible.
4) b removing more co2 from the atmosphere
5) a more sea ice melting
6) tolerate c
7) stained teeth b
8) polar bear will consume less seal meat
9) past and more current research (not sure)
<span>neuropeptide is know to cause a craving for carbohydrates.</span>
The difference in water concentration across a selectively permeable membrane.
Mouth or nose = both openings and cavities
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Pharynx = tubelike passageway on top of the throat
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Larynx = a hollow muscular organ also called the voice box
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Trachea = a large membranous tube
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Bronchi = the major air passages of the lungs
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Lungs = the main organs of the respiratory system
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Bronchioles = any of the minute branches into which a bronchus divides
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Alveoli = microscopic pouches inside lungs where gas exchange occurs
NOTE: Please mark this as brainliest! I truly apologize if there were any mistakes. Hope this helped! :)
