Actually a living thing is not a system. Every part of our body, like our lungs brain or heart, can be seen as a separate system. Therefore we are giant arrays of systems working together to keep you alive
<span>The correct answer is Paramecia, Euglenoids, and Mold. These are all unicellular eukaryotic organisms. Mold may seem like one big piece but it's actually a bunch of unicellular organisms living together and constantly spreading over foor or similar things. They are most commonly predators.</span>
<u>Answer</u>: A) It is a step in glycolysis.
<u>Explanation</u>: <em>Glycolysis</em> is the metabolic process through which <em>glucose molecules</em> are broken down, whereas <em>β-oxidation</em> is the catabolic process through which <em>fatty acid molecules</em> are broken down.
Algae. These pioneer species don't need much to survive, therefore, common pioneer species are bacterial organisms and fungi.