33 results found

Search Results for: clade

Phylogenetics

Phylogenetics Definition Phylogenetics is the scientific study of phylogeny. It studies evolutionary relationships among... Read More

Synapsid

Any member of the Synapsida clade of animals is referred to as a synapsid. They are believed to have descended from the... Read More

SENI Biometric Analysis on the extinct Scincidae species: Macroscincus coctei (underlined)

Brian L. Schnirel Leeway Corucia Research Center (LCRC) Courtesy: Polyphemos (2004)   Introduction: It has been... Read More

Synapomorphy

Definition noun, plural: synapomorphies An advance character state shared among two or more taxa inherited from the most... Read More

Amniote

Definition noun, plural: amniotes Any of the tetrapod vertebrates belonging to Amniota in which an amnion is formed during... Read More

Chordata

Chordata Definition What is Chordata? Chordata is the phylum of the animal kingdom that includes a large number of animal... Read More

Cactus

Definition noun, plural: cacti Any of the plants of the family Cactaceae that are often characterized by having thick,... Read More

Charophyta

Charophyta is a taxonomic group (a phylum) comprised of green algae that live predominantly in freshwater habitats. Members... Read More

Paraphyletic

Definition adjective A biological taxonomy that pertains to a certain group of organisms does include some but not all of... 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

Placentalia

Definition noun (taxonomy) A subdivision of the class Mammalia characterized primarily by their fetus being carried in the... Read More

Marsupial

Definition noun (zoology) A mammal primarily characterized by having a pouch used for carrying their immature young, and... Read More

Bilateral symmetry

Definition noun, plural: bilateral symmetries A form of symmetry in which the opposite sides along a midline is a duplicate... Read More

Taxon

Taxon Definition When studying biological organisms, it’s easier to define, classify and understand them when we follow a... Read More

Chameleon

Definition noun, plural: chameleons A reptile of the family Chamaeleonidae that is known largely for its ability to change... Read More

Eudicotyledon

Definition noun, plural: eudictoyledons Any of the tricolpate angiosperms characterized mainly by having two cotyledons in... Read More

Crocodilia

Definition noun (taxonomy) A taxonomic order that includes the crocodilian species Supplement The order Crocodilia is... Read More

Invasion

Invasion a term that should be used with caution, although most cell biologists would follow Abercrombie in meaning the... Read More

Nematoda

Definition noun (taxonomy) A phylum comprised of roundworms characterized mainly by their smooth, cylindrical, thread-like... Read More

Anamniote

Definition noun, plural: anamniotes Any of the vertebrates that do not belong to the Amniota, and in which an amnion does... Read More

Monotreme

Definition noun (zoology) Any of the egg-laying mammals belonging to the taxonomic group, Monotremata Supplement The class... Read More

Brown algae

Brown Algae Definition Brown algae are algal species characterized by being multicellular and having a brown or... Read More

Endosymbiotic theory

A eukaryotic cell is distinct from a prokaryotic cell by the presence of membrane-bound cellular structures called... Read More

Monotremata

Definition noun (taxonomy) A subdivision of the class Mammalia comprised of mammals laying eggs rather than giving birth to... Read More

Monophyletic

Definition adjective Of, pertaining to, about, or describing that which descended from a single ancestral... Read More

Polyphyletic

Definition adjective Taxonomic groups that have similar character states that descends from one or more ancestral... Read More

Tree

“The biological diversity is plenty if you look around yourself a little closely; with an eye for life!” … People... Read More

Genus

Genus Definition A genus is a taxonomic category ranking used in biological classification that is below family and above... Read More

Ape

Definition noun, plural: apes Any of the tailless anthropoid primates of Hominoidea, which includes the great apes and the... Read More

Photosynthesis

Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More

Green algae

Green Algae Definition Green algae (singular: green alga) are photosynthetic algae that are characterized by having... Read More

Plant

Plant Definition (botany) Any of the eukaryotic organisms of the biological kingdom Plantae, characterized by being... Read More