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Search Results for: open system

Open system

open system A system that exchanges energy and materials with the outside... Read More

System

A system pertains to interdependent or interrelated objects comprising and functioning as a whole. In biology, it may refer... Read More

Circulatory system

Circulatory System Definition noun The organ system responsible for the circulation and transport of oxygen, carbon... Read More

Axon hillock

Axon Hillock Definition What is axon hillock? If you are familiar with the different parts of the neuron, the axon hillock... Read More

Ecosystem

Ecosystem Definition An ecosystem is a system consisting of biotic and abiotic components that function together as a unit.... Read More

Semilunar valve

The human heart structure consists of heart chambers (2 atria and 2 ventricles) that differ functionally from each other.... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More

Circulatory fluid

Definition noun The fluid confined within the vessel in a closed circulatory system or that contained in a cavity (hemocoel)... Read More

Mitosis

Mitosis Definition What is mitosis? In biology, mitosis refers to the cellular process where a single cell divides... Read More

Sarcolemma

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

The Hominids

Although humans in today's world are the most advanced species on the planet, we previously shared the exact same genetic... Read More

Phylum

Just like it is easy to identify and sort anything in the supermarkets when placed in the right section with proper display... Read More

Closed circulatory system

Definition noun A type of circulatory system where blood circulates within closed vessels, thus, blood is distinct from... Read More

Open circulatory system

Definition noun A type of circulatory system wherein the hemolymph bathes the organs and tissues directly thus there is no... Read More

Metabolism

Metabolism Definition What is metabolism in the body? Metabolism encompasses the various biochemical processes, reactions,... Read More

Anaerobic bacteria

Bacteria are classified according to the need for oxygen to survive and grow.   For example, aerobic bacteria are bacteria... Read More

The FIFTH MIRACLE: The Search for the Origin and Meaning of Life

 The FIFTH MIRACLE: The Search for the Origin and Meaning of Life    ... Read More

Biological Cell Defense

Organisms must find a means of defense against antigens such a viruses described on the previous tutorial. If this was not... Read More

Arthropod

Arthropod Definition What is an arthropod? An arthropod is an invertebrate living organism characterized by the presence of... Read More

Homeostasis

Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More

Expands

Expand to become widely opened, spread apart, dilated, distended, or enlarged; as, flowers expand in the spring; metals... Read More

Water in Plants

The movement of molecules, specifically water and any solutes, is vital to understand in light of plant processes. This will... Read More

Carrier protein

Carrier protein is a type of cell membrane protein involved in facilitated diffusion and active transport of substances out... Read More

Burst

Burst 1. To fly apart or in pieces; of break open; to yield to force or pressure, especially to a sudden and violent... Read More

Community (biology)

Community, in biology, refers to the assemblage of interacting organisms (either of the same or different species)... Read More

Directed case study method for teaching human anatomy and physiology

DIRECTED CASE STUDY METHOD FOR TEACHING HUMAN ANATOMY AND PHYSIOLOGY William H. Cliff and Ann W. Wright Department of... Read More

Sarcoplasmic reticulum

Definition noun plural: sarcoplasmic reticula (cell biology) The special type of smooth endoplasmic reticulum found in... Read More

Still Freshwater & Plants

Plants in the freshwater community provide a means of food for herbivores and harness new energy into the community as a... Read More

Birth of a Human Baby

Continued from the previous tutorials, Fertilization and Fetal Growth and Development. The baby soon outgrows the energy... Read More

Solid

solid 1. Having the constituent parts so compact, or so firmly adhering, as to resist the impression or penetration of... Read More

New Zealand’s Unique Fauna

By: Maria Victoria Gonzaga In the previous lesson, we learned about the high biodiversity of New Zealand and how... Read More

Simple fruit

Definition noun, plural: simple fruits A type of fruit that develops from a single or compound ovary with only one pistil... Read More

Reducing sugar

Reducing Sugar Definition What is reducing sugar? The type of sugar that acts as the reducing agent and can effectively... Read More

Alimentary canal

Definition of Alimentary canal What is the alimentary canal? The alimentary canal is a muscular hollow continuous tubular... Read More

Rachischisis

Definition noun The embryological failure of the neural tube to fuse or close completely thereby resulting in the vertebrae... Read More

Hemolysis

Definition noun The lysis or the breaking open of red blood cell (erythrocyte) causing the release of hemoglobin into the... 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

Gated ion channel

(Science: physiology) transmembrane proteins of excitable cells, that allow a flux of ions to pass only under defined... Read More

Explicit

Explicit 1. Not implied merely, or conveyed by implication; distinctly stated; plain in language; open to the understanding;... Read More

Clostridium tetani

Definition noun An obligate anaerobic rod shaped and gram-positive bacterium which appears to looks like a drumstick that is... Read More