I believe the answer is (B)
<span>a complex series of feeding relationships with many organisms interacting and depending on each other </span>
The correct answer is B. Prokaryotes do not have a nucleus, while eukaryotes do.
Answer:
Mammals first appeared
Explanation:
The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.
