Negri bodies eosinophilic, sharply outlined, pathognomonic inclusion body’s (2 to 10 um in diameter) found in the cytoplasm of certain nerve cells containing the virus of rabies, especially in ammon’s horn of the hippocampus. Synonym: negri corpuscles...
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..
Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..
Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..
For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..
The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..
