A high level of organization (a)
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Excretory system consists of nephridia as excretory organ which is analogous to kidney.
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Answer:
B
Explanation:
a sinkhole is the answer. I got it on edge 2020
Decomposers. They break down materials into soil anything that breaks down natural materials is considered decomposers
Answer:
A. The appearance of complex, multicellular animals
Explanation:
Precambrian period is the earliest period in the history of the earth. It was characterized by different evolutionary characteristics and differences.
The end of this period was marked with The appearance of complex, multicellular animals which were able to perform complex tasks