31 results found

Search Results for: external respiration

Respiration

Definition noun, plural: respirations Any of the various analogous processes by which there is an exchange of... Read More

An introduction to Homeostasis

Researched and Written by Jonjo Minns Submitted to biologyonline.com on February 25, 2009. Published in biologyonline.com... Read More

External Respiration

The bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon... Read More

Adaptation Tutorial

Previous sections have indicated the importance of homeostatic control, the requirement of a set environment and how... Read More

Animal Water Regulation

Homeostatic control, a set environment, and how evolution and natural selection drives a species to adapt to its environment... Read More

Arthropod

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

Pyruvate

Pyruvate Definition Pyruvates have been often recognized as one of the most important molecules that are frequently... Read More

Plasma membrane

Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More

Eubacteria

Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single... 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

Assimilation

Assimilation Definition Assimilation in biology is referred to as the process in which the living organisms integrate the... Read More

Gill – Respiration

An organ found in aquatic animals that helps them to filter oxygen from the water to be used for respiration. They can be... Read More

Non-living thing

A non-living thing in biology means any form without life, such as an inanimate body or object. Compared with the entity... Read More

Control of Growth & Development

This regulation of growth tutorial looks at the various factors involved that affect growth. When it comes to the crunch, it... Read More

Plant Water Regulation

A plant requires water as an essential ingredient of photolysis, the photochemical stage of photosynthesis where water is... Read More

Cell Biology

It only takes one biological cell to create an organism. In fact, there are countless species of single celled organisms,... Read More

Phosphorylation

Phosphorylation Definition We can define phosphorylation as a biochemical process in which a phosphate molecule is added to... Read More

Seedling

Definition noun, plural: seedlings (botany) A young sporophyte that grows from a seed; a (recent) sprout Supplement A... Read More

Animal

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

Amnion

Definition noun, plural: amnions The innermost membrane of the extraembryonic or the fetal membranes of amniotes surrounding... Read More

Harnessing the brain’s plasticity key to treating neurological damage

SAN FRANCISCO - With an aging population susceptible to stroke, Parkinson's disease and other neurological conditions, and... Read More

Concentration gradient

Concentration gradient definition Concentration gradient refers to the gradual change in the concentration of solutes in a... Read More