Search Results for: families
Demographic transition
The demographic transition model is a theoretical framework that explains the historical shift in population dynamics as a... Read More
Angiosperm
Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More
Photosynthesis
Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More
Kingdom Animalia
Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... Read More
Gene family
Definition noun, plural: gene families A set of genes with a known homology and are, in general, biochemically... Read More
Intercalary meristem
The basic structural framework of plants is composed of different types of tissues. Based upon the capacity to divide, the... Read More
Classification system
Classification Systems Definition In life, many things are classified, that is, to put into categories or groups based on... Read More
Synapomorphy
Definition noun, plural: synapomorphies An advance character state shared among two or more taxa inherited from the most... Read More
Polymorphism
Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More
Parallel evolution
Definition noun An evolutionary process by which two or more separate species in the same environment develop similar... Read More
Apocarpous gynoecium
Apocarpous gynoecium is comprised by the set of many simple pistils (consistig of only one carpel). Characteristic fruit for... Read More
Infraorder
Definition noun, plural: infraorders (taxonomy) A taxonomic category of related families of organisms, ranking below... Read More
Allotetraploid
Allotetraploid Definition An allotetraploid is an organism with four sets of chromosomes (4n). This is in contrast to the... Read More
Dead Man Walking
Dead Man Walking: Wade Davis and the Secret of the Zombie Poison By Patrick D. Hahn Accepted on September 4, 2007 Twenty... Read More
Filarioidea
Definition noun (taxonomy) A superfamily of the phylum Nematoda and is comprised of small, threadlike parasitic nematodes... Read More
Haplorrhine
Definition noun, plural: haplorrhines Any of the primates characterized mainly by being dry-nosed because of a lack of a... Read More
Magnoliopsida
Definition noun (plant taxonomy) A taxonomic class comprised of the dicotyledonous plants, according to the Takhtajan system... Read More
Liliopsida
Definition noun (plant taxonomy) A taxonomic class of the division Magnoliophyta comprised of lilies, grasses, palms,... Read More
Parasitoid
Definition noun, plural: parasitoids An organism that lives on or inside the host at one phase in its life cycle, and... Read More
Plant Tissues
Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More
Plant Metabolism
Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More
Mitochondrial DNA not just from moms but also from dads?
If one wants to trace down lineage, that person could turn to the cell's powerhouse, the mitochondrion. This organelle... Read More
Genetic Mutations
Reviewed by: Mary Anne Clark, Ph.D. Genetic Mutations Genetic mutations are inherited variations in an... Read More
Velvet worm
Definition noun, plural: velvet worms Any of the invertebrates belonging to the phylum Onychophora, and characterized by... Read More
Convergent evolution
Convergent evolution definition What is convergent evolution? Convergent evolution is a concept in evolutionary biology... Read More