Here something that might help
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Most scientists believe that for half of </span>Earth's<span> 4.6-billion-year history, the</span>atmosphere<span> contained almost no </span>oxygen<span>. Cyanobacteria or blue-green algae became the first microbes to produce </span>oxygen<span> by photosynthesis, perhaps as long ago as 3.5 billion years ago and certainly by 2.7 billion years ago.</span>
<span>What is the hematocrit value for the healthy male living at sea level in Boston? The Answer is </span>48 for males and 55 for a female.
Answer:
d
Explanation:
bacteria can replicate themselves without help from a living cell.
Answer:
A- I have not idea sorry!
B- Looks like a vacuole
C- Cell membrane
D- Endoplasmic Reticulum
Explanation:
