Answer:
The earliest known life-forms on Earth are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 billion years ago, relatively soon after the oceans formed 4.41 billion years ago, and not long after the formation of the Earth 4.54 billion years ago.
Explanation:
Pycnocline thermocline then halocline
How I view it Thermo = thermometer measures temp
Halos= some word from Greek that means salt
So that leaves pync for density it’s right but my reasoning behind it makes no sense but trust me
Answer:
I believe it's Energy and organic matter can't be recycled and must constantly be supplied to an ecosystem not entirely sure though
Explanation:
The number molecules inside and outside the cell would be constant. This only happens once the cell is dead.
The evidence that supports the autogenic hypothesis is that transfer of DNA occurs between bacteria species.
The endosymbiotic hypothesis is that a prokaryotic cell “ate” smaller organelles which evolved into what they are today.