D. single- and simple multi-celled organisms
Although more complex animals like invertebrates and multi-celled organisms began to appear, it was very late compared to the original, simpler organisms for which the Precambrian time is characterized by.
Answer:
where is the diagram? I need to see it to answer.
Explanation:
From small beginnings, South America grew to greatness because of maize. Just did this and it's correct.
