48 results found

Search Results for: vision

Monocular vision

Definition noun (1) (zoology) A type of vision in which one eye of the animal moves and sees objects independently of the... Read More

Binocular vision

Definition noun (1) (zoology) A type of vision wherein both eyes of an animal are used at the same time (as opposed to... Read More

Young-helmholtz theory of colour vision

'''Young-helmholtz theory of color vision A theory that there are three perceiving elements in the retina: red, green, and... Read More

Vision

vision 1. (Science: ophthalmology) The act or faculty of seeing, sight. 2. (Science: psychiatry) An apparition, a subjective... Read More

Blindness – Evolutionary regression? Maybe not!

The recent Netflix's hit flick, Bird Box, surely startled the viewers with the thrilling scenarios revolving around the... Read More

Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and... Read More

Stimulus

We can detect hot or cold environments using our sense of temperature. When the temperature is too hot, sweating... Read More

Mutualistic symbiosis

Mutualistic Symbiosis Definition In order to understand what a mutualistic symbiotic relationship means, we will break down... Read More

Felidae

Definition noun A taxonomic family of Carnivora embracing domestic and wild cats such as lions and tigers Supplement Felidae... Read More

Chlorophyll

Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More

Ganglia

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Degenerative disease

Degenerative Disease Definition A degenerative disease is defined as a disease characterized by the worsening condition due... Read More

Quadrantanopia

Definition noun, plural: quadrantanopias A visual field defect characterized by a loss of vision in a quarter section of the... Read More

Ganglion

Ganglia Definition What are ganglia? To simply define ganglia in biology, it is the structure of an oval shape that... Read More

Coenzyme

Enzymes can break down complicated large molecules into simpler smaller ones, they can combine small molecules or atoms to... Read More

Prosimian

Definition noun, plural: prosimians Any of the primitive, nocturnal primates, such as lemurs, lorisoids, haplorrhine... Read More

Domestic cat

Definition noun, plural: domestic cats A small domesticated Felis species, e.g. F. domestica or F. catus Supplement The... Read More

Hallucination – Are we the only ones “seeing” things or animals hallucinate, too?

Hallucination is defined as perceiving something that seems real but in fact, it is not. Some references take it as a... Read More

Human Perception – Neurology

A better understanding of human perception unlocks the key to how the mind works, an advantage when working with people with... Read More

A Balanced Vitamin Diet – Vitamins A – K

As mentioned in the previous tutorial, a balanced diet is essential to a healthy organism. Deficiencies in particular... Read More

Eye

Definition noun, plural: eyes (1) The organ of sight or vision; the visual sense; the sense of seeing. (2) A mark... Read More

Tapetum lucidum

Definition noun, plural: tapeta lucida A layer of tissue in the choroid or in the retinal pigment epithelium of the eye of... Read More

Tapetum

Definition noun, plural: tapeta (botany) A layer of nutritive cells within the sporangium, providing nutrition for growing... Read More

Philippine tarsier

Definition noun, plural: Philippine tarsiers A tarsier species endemic to the islands of the Philippines Supplement Tarsiers... Read More

Neuroscience

Definition noun The branch of science that deals with the nervous system, particularly structure, development, function,... Read More

Chameleon

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

Analogous structures

Analogous Structures Definition In evolutionary biology, analogous structures are defined as biological structures having... Read More

Equilibrioception

Definition noun, plural: The sense of balance in humans and animals that involves visual system, vestibular system, and... Read More

Trophic level

In ecology, a trophic level pertains to a position in a food chain or ecological pyramid occupied by a group of organisms... Read More

Prophase

Prophase is the first stage of mitosis; the very first step in this crucial process of the M-phase of the cell cycle. Now as... Read More

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Convergence

Definition noun (evolutionary biology) The evolutionary process in which the organisms evolve bodily parts that are... Read More

Cone

Cone 1. (Science: plant biology) in gymnosperms and club mosses, a group of sporophylls arranged compactly on a central... Read More

Stationary

stationary 1. Not moving; not appearing to move; stable; fixed. Charles Wesley, who is a more stationary man, does not... Read More

Illusion

Illusion 1. (Science: psychology) An unreal image presented to the bodily or mental vision; a deceptive appearance; a false... Read More

Benign

Benign Definition How to define benign? The meaning of benign in a general sense is "beneficial" and "pleasant". Benign is... Read More

Analogous

In evolutionary biology, the meaning of analogous is “having similarities in functions but different evolutionary... Read More

Degenerate

Degenerate means to become worse or less of its kind or former state. In biology, it means an entity performs the same... Read More

Visual acuity

visual acuity (Science: microscopy) The ability to detect fine details or small distances with the eye. Visual acuity can... Read More

Guanine

Definition noun plural: guanines gua·nine, ˈɡwɑː.niːn (biochemistry) A purine nucleobase that complementary pairs... Read More