Cyanobacteria.
All land animals evolved from under the water. I would say fish and ammonites.
Yes. Our DNA has been passed on and changed/modified since the earliest forms of life.
Then we are all screwed.
The superlative form of "early" is "earliest." It is used to describe something that occurs before all others in time or sequence. For example, you might say, "She arrived the earliest of all the guests."
The earliest form of exchange was known as barter
Bacteria and Cells with fomed from the big bang, but if you are a creationist then, Adam and eve
unicellular organisms are earliest forms of life
Stromatolites are one of the earliest known life forms; some fossils may date back 3.5 billion years - before Earth had any oxygen in it's atmosphere.
John F. Kennedy died the earliest out of all presidents.
The earliest forms of life likely used anaerobic respiration, which does not require oxygen to produce energy. This process is less efficient than aerobic respiration but can still generate ATP for cellular processes.
Earliest Available Time or Earliest Arrival Time
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