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Bryophytes are a plant group characterized by being nonvascular. They include the mosses, the liverworts, and the hornwo..

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This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

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The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

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One of Mendel’s law of inheritance is the “law of dominance”. Read this tutorial to know more about this form of i..

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While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

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Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..