Answer:
esophagus, pancreas, liver, gallblader, salivary glands
Explanation:
The answer to this is the remains and waste products of plants, animals and other living things organisms.
C. the mesosphere is the correct answer
The answer to this is Quaternary.
Bacteria that change nitrogen gas from the atmosphere into solid nitrogen usable by plants are called nitrogen-fixing bacteria. These bacteria are found both in the soil and in symbiotic relationships with plants.
