Origin of Life & Oxygen Release — NEET Biology
📚 Practice ConceptAbout 2000 million years ago (mya) the first cellular forms of life appeared on earth. The mechanism of how non-cellular aggregates of giant macromolecules could evolve into cells with membranous envelop is not known. Some of these cells had the ability to release O₂. The reaction
Which of the following statements are correct? S1: The Mesozoic era is widely recognized as the 'Age of Mammals' due to their rapid diversification. S2: Oxygen production on Earth began with the appearance of the first cellular forms of life approximately 2000 million years ago. S3: Amphibians evolved into reptiles, which successfully colonized land partly due to their ability to lay thick-shelled eggs that resist desiccation. S4: The extinction of dinosaurs, leading to the rise of mammals, occurred about 165 million years ago. S5: The emergence of modern Homo sapiens is associated with the period between 75,000-10,000 years ago, during the last ice age.
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