A picture or hieroglyph representing and expressing an idea. Pictograph”ic.
See: picture, and -graph.
The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
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