Answer:
Species
Explanation:
species
The smallest unit of this hierarchical categorisation is species while the largest unit is kingdom.
According to the stability-diversity hypothesis, tropical rain forests are stable communities because they have high species richness. Thus, the correct option is A.
<h3>What is Species richness?</h3>
Species richness may be defined as a count of the number of species living in a community at a particular time.
The tropical rainforest has a stable climate with moderate rainfall. So, species richness and diversity have been found in this biome.
Therefore, the correct option for this question is A.
To learn more about Species, refer to the link:
brainly.com/question/1542287
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Answer:
D
Explanation:
hope this helps you to understand:)