Assignment task: Answer the following questions in a couple of paragraphs. Please add citations at the end.
Q1. Describe conditions on earth before life began; describe the earliest forms of life, and explain how these early life forms changed conditions on earth.
Q2. Explain how multicellularity arose, probably more than once, and how it led to the evolution of fungi, animals, and plants.
Q3. Explain how researchers use evidence to make conclusions about the taxonomic relationships among species.