48 results found

Search Results for: scales

Biodiversity

Biodiversity Lead Author: J. Emmett DuffyThis article has been reviewed and approved by the following Topic Editor: John... Read More

Stems

External Form of a Woody Twig A woody twig, or stem, is an axis with leaves attached. The leaves are arranged in various... Read More

Chondrichthyes

Definition noun A taxonomic class comprised of cartilaginous fish Supplement Chondrichthyes is taxonomic superclass of... Read More

"Mummified" Dinosaur Discovered In Montana

By Hillary Mayell An onsite restoration drawing of how "Leonardo" may... Read More

Seed Plants

There are two main subdivisions of seed plants—the ones without covered seeds, the gymnosperms, and the ones with covered... Read More

Unified atomic mass unit

Unified Atomic Mass Unit Definition The Unified Atomic Mass Unit (u) (or simply atomic mass unit) refers to the 1/12... Read More

Scales

scale A reduced or rudimentary leaf, for example surrounding a dormant bud, a thin flap of tissue, for example on the... Read More

Independent variable

Independent Variable Definition To define an independent variable, let us first understand what a variable is. The word... Read More

Epidermis

Epidermis Definition What is the epidermis? We can define the epidermis as one or more layers of cells forming the tough... Read More

Primary productivity

Planet Earth is home to different types of life forms ranging from microscopic bacteria to giant whales and elephants. To... Read More

Asteraceae

'Asteraceae'', composite family. A single family enclosed in order Asterales in subclass Asteridae. The other name -... Read More

Stipulate

Stipulate Definition Stipulate meaning: Stipulate typically refers to a specific feature or characteristic of a plant's... Read More

Aves

Aves Definition What are birds classified as? Birds constitute the class Aves of the kingdom Animalia. How to define Aves?... Read More

Amphibians & Early Reptiles

Amphibia Definition (Science: zoology) Amphibia is one of the classes of vertebrates. The amphibia are distinguished by... Read More

Asexual reproduction

Asexual Reproduction Definition What is asexual reproduction? Asexual reproduction is a type of reproduction that does not... Read More

Cladophyll

Cladophyll (Science: plant biology) a flattened, leaf-like photosynthetic stem not bearing leaves or scales. Compare:... Read More

Albinism

Definition noun A hereditary, congenital disorder characterized by the complete or partial lack of pigmentation production... Read More

Convoluted

The word convoluted is often used to describe different things, especially structures or components, that have overlapped.... Read More

Hypomelanism

All the body cells of living organisms bear some color due to one or the other pigment molecule or complex. The pigment can... Read More

Lamellae

Definition noun, singular: lamella (general) Thin structures resembling a plate. (cell biology) Intergrana thylakoids, i.e.... Read More

Exfoliation

Exfoliation (Science: biology) a falling off in scales or layers. Origin: L.... Read More

Chlorophyta

Chlorophyta Definition Chlorophyta is a taxonomic group (a phylum) comprised of green algae that live in marine habitats.... Read More

Herbivore

Herbivore Definition A herbivore is the primary consumer of the food chain that usually occupies the second trophic level... Read More

Gymnosperm

Definition noun, plural: gymnosperms A vascular plant in which the seeds are not enclosed by a ripened ovary... Read More

Crocodile

Definition noun, plural: crocodiles Any of the amphibious reptile species of the subfamily Crocodylinae Supplement The... Read More

Biodiversity

The biological world or life on earth is a marvel that has amazed us since time immemorial. The rich natural diversity of... Read More

Lacertilia

Lacertilia (Science: zoology) An order of reptilia, which includes the lizards. They are closely related to the snakes, and... Read More

Lodicule

Lodicule (Science: plant biology) One of a pair of tiny scales in a grass floret, between the lemma and the fertile parts of... Read More

Fulcrum

Fulcrum Origin: L, bedpost, fr. Fulcire to prop. 1. A prop or support. 2. (Science: mechanics) That by which a lever is... 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

A Look Into Natural Selection and its Mechanisms

Charles Darwin is credited with outlining the fundamentals of evolution. He was a smart and eager pupil and protégé, and... Read More

Tail

tail 1. (Science: zoology) The terminal, and usually flexible, posterior appendage of an animal. The tail of mammals and... Read More

Animal

Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More

Naked

naked 1. Having no clothes on; uncovered; nude; bare; as, a naked body; a naked limb; a naked sword. 2. Having no means of... Read More

Embryology

Embryology Definition Embryology is a branch of biology that deals with the topics concerning gamete formation... Read More

Vestiture

vestiture That which covers a surface, as hairs, scales,... Read More

Inbreeding

Inbreeding is a type of breeding or mating where closely related individuals with a common ancestor produce progenies with... Read More

Epithelium

An epithelium is a type of animal tissue made up of densely packed cells (called epithelial cells) that rest on a basement... Read More

Salamanders

salamander 1. (Science: zoology) Any one of numerous species of urodela, belonging to salamandra, Amblystoma, Plethodon, and... Read More

Integumentary system

Integumentary System Definition The integumentary system is the outermost layer of the body. The animal body, in... Read More