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The best time to receive feedback is before you turn your assignment in. Sometimes valuable feedback comes too late, which is why our automated proofreading tool can be especially helpful -- not just for detecting grammar or spelling errors, but also for giving helpful tips that make you a better writer.

From single-celled organisms to giant redwoods, Life Science explores all of Earth's life forms. Use interactive, animated activities to identify the living and nonliving components of an ecosystem, design a Venn diagram to compare the migrations of monarch butterflies and red knot shorebirds, and take a virtual field trip to a solar farm. Resources in Life Science gives you a wide range of topics, including the cell cycle, genetic disorders, and bioethics.