Pheromones. Synomones . Allelochemicals . Allomones . Ectohormones . Kairomones . Semiochemicals . Chemical substances, excreted by an organism into the environment, that elicit behavioral or physiological responses from other organisms of the same species. Perception of these chemical signals may be olfactory or by contact. . 1.00
Alleles. Allele . Allelomorph . Allelomorphs . Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product. . 0.62
Allelopathy. Allelopathies . The process by which organisms release chemical compounds known as ALLELOCHEMICALS which influence the physiology, growth, survival, colonization, and reproductive activities of other species usually located nearby. . 0.57
Chemical Compounds. Chemical Agents . Chemicals and Drugs . Chemical Products and Drugs . Chemical Products and Medicines . Chemical Products . Chemical Substances . Chemicals . 0.49
Agrochemicals. Agrichemicals . Chemicals, Agricultural . Agricultural Chemicals . Chemicals used in agriculture. These include pesticides, fumigants, fertilizers, plant hormones, steroids, antibiotics, mycotoxins, etc. . 0.47