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...
Proteins have a crucial role in various biological activities. Get to know how proteins are able to perform as enzymes, ..
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..
This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..
