Cyanobacteria helped produce O2. Because it helped releasing O2 into the atmosphere, today we see different animals because Cyanobacteria helped reduce the poor oxygen in the atmosphere.
And involuntary muscle is a muscle you don't have to tell to move, your brain does it by itself so, just look for the opposite.
A)Muscle in your arm
A) over time finches on the island adapted and evolved as a result of competition over resources. It was one of Darwin's original focuses for his Theory of Evolution
<span>D. Congress forced him to retract his idea.
Whereas,
</span><span>Andrew Johnson continued with Lincoln's plan after he became President.</span>
The first option is correct.
Some other options say that malignant cancer is lethal and yes, but not strictly and not all the time.
Hope it helped,
Happy homework/ study/ exam!
