signet ring
The early stage of trophozoite development of the malaria parasite in the red blood cell; the parasite cytoplasm stains blue around its circular margin, and the nucleus stains red in Romanowsky stains, while the central vacuole is clear, giving the ringlike appearance.
In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..
Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..
Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..