100 results found

Search Results for: narrow

Stripes

stripe 1. A line, or long, narrow division of anything of a different colour or structure from the ground; hence, any linear... Read More

Catarrhine

Definition noun, plural: catarrhines Any of the primates belonging to the parvorder Catarrhini, characterized by having the... Read More

Protoxylem

Definition noun The first xylem to develop from the procambium, and characterized by narrow tracheary elements with annular,... Read More

Allopatric speciation

We can define speciation as a process by which the novel genetically independent group of organisms are formed through the... Read More

Capillary action

Definition noun The movement of a liquid, e.g. water molecules, through a narrow space as a result of cohesion, adhesion,... Read More

Perisinusoidal space

Definition noun The plasma-filled extravascular space in the liver, between a hepatocyte and a liver sinusoid Supplement The... Read More

Endemic

Global biodiversity is under threat and the rate at which species are getting endangered and extinct is alarming. If you... Read More

Grass

Definition noun, plural: grasses (1) Monocotyledonous plant of the family Poaceae (also called Gramineae) characterized by... 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

Neck

neck 1. The part of an animal which connects the head and the trunk, and which, in man and many other animals, is more... Read More

Physiological adaptation

If we look over evolutionary history, we find that it’s neither the most genius and intelligent nor the strongest and the... Read More

Pinocytosis

Pinocytosis Definition What is pinocytosis?  Pinocytosis is the ingestion of extracellular fluids, i.e. the fluid... Read More

Xylem

Xylem Definition Xylem is defined as a plant tissue that transfers water and nutrients from roots to all over the plant... Read More

Dactylus

Definition noun, plural: dactyla (zooanatomy) A dactyl, i.e. a digit (a finger or a toe) Supplement The term dactylus refers... Read More

Cytology

The biological world is so diverse that studying it under a single umbrella as a subject is next to impossible. Hence,... Read More

Realized niche

What is a niche? A niche can be defined as the means by which a species or an individual interacts with its environment. In... Read More

Antecubital fossa

Antecubital Fossa Definition The antecubital fossa or the cubital fossa is the triangular-shaped hollow depression between... Read More

Petrotympanic fissure

Definition noun A narrow transverse slit dividing the mandibular fossa of the temporal bone into tympanic and petrous... Read More

Dichotomous

Several English words are widely used across different fields of Science. One such term is dichotomous. We often use this... Read More

Book lungs

Book Lungs Definition Lungs are known as the organs that help organisms breathe. When we think of lungs, we think of the... Read More

Muscular system

Muscular System Definition What is the muscular system? The muscular system is a system that includes muscle cells and... Read More

Mutualistic symbiosis

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

Atrioventricular sulcus

Definition noun (anatomy) A sulcus or a groove on the outer surface of the heart marking the division between the atria and... Read More

Manubrium

The manubrium is a handle-like structure, as in the manubrium of the sternum or of the malleus. In Latin, it translates to... Read More

Ethmoidal labyrinth

Definition noun, plural: ethmoidal labyrinths Either of the paired lateral masses of the ethmoid bone, consisting of the... Read More

Internal auditory canal

Definition noun A short, narrow passageway through the temporal bone of the skull where the vestibular nerve and cochlear... Read More

Internal acoustic meatus

Definition noun A short, narrow passageway through the temporal bone of the skull where the vestibular nerve and cochlear... Read More

Erlenmeyer flask

Erlenmeyer flask (Science: apparatus) a piece of chemistry laboratory equipment, a container often made of glass, which has... Read More

Rovsings sign

Rovsing's Sign Definition Rovsing's sign is when palpation on the left lower quadrant of the abdomen results in pain in the... Read More

Nervous System

    THE is the most complicated and highly organized of the various systems which make up the human body. It is the... Read More

Fiber

Definition noun, plural: fibers (1) (anatomy) any elongated, thread-like structure, e.g. nerve fiber (2) (botany) A cell... Read More

Phloem fiber

Definition noun (botany) The elongated sclerenchyma cells in the phloem, and is responsible for providing tension strength... Read More

Simian

Definition noun, plural: simians Any of the placental primates, particularly hominins, apes and... Read More

New Zealand’s Unique Flora

By: Maria Victoria Gonzaga In the previous lesson, we've come to know some of the most fascinating endemic... Read More

Effect of Chemicals on Growth & Development in Organisms

Plants Plants require a large number of elements to function properly, mainly carbon, oxygen, and hydrogen, essentially... Read More

Regulation of Organic Metabolism, Growth and Energy Balance

Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Dendrite

Dendrite Definition Dendrites are the protoplasmic projections from the neuron cells that receive the electrochemical... Read More

Phloem sclerenchyma

Definition noun The sclerenchyma cells in the phloem of many vascular plants, and is responsible for providing mechanical... Read More

Xylem fiber

Definition noun, plural: xylem fibers Any of the fibers made up of dead sclerenchyma cells in between the xylem vessels... Read More