Answer:
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Explanation:
D I think hope this helps
Answer:
1. When the beginning of Earth occurred, there was little to no oxygen. So, some cells had to adapt to this and the process of anaerobic respiration allowed them to do so. In the grand scheme of things, there must have been a great number of anaerobic respiration occurring given the clement.
2. That probably would have caused the
atmosphere to cool down dramatically. The
cyanbacteria could have assisted, because it puts
oxygen into the atmosphere. The other autotrophs
would be affected, because if the temperature
dropped, the air would have cooled down.
Then, the autotrophs would not have
food from the carbon dioxide, or
other inorganic materials.
Explanation:
Step 1: Line the slide up under the microscope until he can see the blurry slide
Step 2: Slowly turn the large focus knob until the object becomes less blurry
Step 3: If the microscope has a small focus knob then slowly turn that until object is no longer blurry
A. hypothalamus is correct
