Test your knowledge of circles and their properties with this quiz! Explore the...

<p>Arc</p> Signup and view all the answers

<p>Radius</p> Signup and view all the answers

<p>The challenges in defining life include distinguishing biological processes from non-biological matter, and the replication of viruses only within host cells, making it difficult to categorize them as living or non-living.</p> Signup and view all the answers

<p>Various philosophical definitions of living systems have been proposed, such as self-organizing systems, which aim to explain the organization and behavior of living organisms.</p> Signup and view all the answers

<p>Life exists in harsh environments, occupied by extremophiles, which are organisms adapted to survive and thrive in extreme conditions such as high temperatures, salinity, or acidity.</p> Signup and view all the answers

<p>Empedocles's materialism theory asserts that life was composed of four eternal elements, while Aristotle's hylomorphism theory posits that living things have souls and embody both form and matter.</p> Signup and view all the answers

<p>Life originated at least 3.5 billion years ago, resulting in a universal common ancestor, from which all living organisms have evolved over time.</p> Signup and view all the answers