<span>a. tertiary consumers
</span>Carnivores are tertiary consumers since they eat the secondary consumers that gallop the producers.
<span>A </span>biological system<span> or also called, a biotic community is composed mainly of living organisms. These organisms can be classified into the main layman categories of animals and plants, majorly. These creatures can be more furthered classified by how they eat and survive. Plants can make their own food through, photosynthesis. Animals eat and are dependent. Can be classified into subtypes as: herbivores, omnivores and carnivores. What makes all of these organisms a biotic community or a biological system is they contain cells, cells are the basic unit and foundation of every living thing.<span>
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Answer:
sun - plants - deer - lion - eagles add more if u like
Explanation:
When the acidic level of human blood increases bicarbonate (HCO 3-) accepts H + ions and forms carbonic acid and this is how the balance of hydrogen ions (H+) is restored.
The three common parts of a nucleotide are a nitrogen base, a phosphate group, and a pentose sugar.