Answer:
It Is A Relationship A is mutualism and Relationship B is predation. Hope this help!
Explanation:
option c is the right answer please mark me as brainlist
Answer:
The correct answer in A) All electrical activity of the brain has ceased for a specified period of time
Answer:
3.5 billion years ago, or in the Eoarchean Era.
Explanation:
The first known single-celled organisms appeared on Earth about 3.5 billion years ago, roughly a billion years after Earth formed. More complex forms of life took longer to evolve, with the first multicellular animals not appearing until about 600 million years ago.
The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era.
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