A spherical shell that is usually made of a biodegradable or resorbable plastic polymer, that has a very small diameter usually in the micrometer or nanometer range, and that is often filled with a substance (as a drug or antibody) for release as the shell is degraded.
A spherical shell that is usually made of a biodegradable or resorbable plastic polymer, that has a very small diameter usually in the micrometer or nanometer range, and that is often filled with a substance (as a drug or antibody) for release as the shell is degraded...
The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..
It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..
Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..
