Elicitor
(Science: plant biology) substance that induces the formation of phytoalexins in higher plants. May be exogenous (often produced by potentially pathogenic microorganisms) or endogenous (possibly cell wall degradation products).
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..
This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..