Answer:
C. Atomic Number
Explanation:
Atomic number, also known as proton number, never changes. Therefore it allows us to identify each atom.
Answer:
In trees, most savanna adaptations are to drought--long tap roots to reach the deep water table, thick bark for resistance to annual fires (thus palms are prominent in many areas), deciduousness to avoid moisture loss during the dry season, and use of the trunk as a water-storage organ (as in baobab).
Producer: make food for themselves and other living things.
Consumer: obtain energy by feeding on other organisms and sometimes transfer energy to other consumers.
Decomposer: break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.
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the answer is muscularis externa
