pheromones
chemical substances which, when secreted by an individual into the environment, cause specific reactions in other individuals, usually of the same species. The substances relate only to multicellular organisms. This includes kairomones. Allomones are repellent pheromones.
Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..
Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..
While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..
The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..
This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..
Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..
