Metazoan

Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..

This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..

There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structur..

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