The role of mass extinction in evolution. At the most basic level, mass extinctions reduce diversity by killing off specific lineages, and with them, any descendant species they might have given rise to. ... But mass extinction can also play a creative role in evolution, stimulating the growth of other branches.
What this student thought was happening is called spontaneous generation. Spontaneous generation is a body of thought on the ordinary formation of living organisms without descent from similar organisms
HOWEVER, the student was wrong because it is impossible for organisms to be spawned out of nothing. The organisms appeared due to bacteria on the meat and in the air.
Explanation:
Fixed> materials for used production, machinery
Variable> Employee salary, wages, rent