28 results found

Search Results for: gills

Gills

Gill a woody glen; a narrow valley containing a stream. Origin: Icel. Gil. 1. (Science: anatomy) An organ for aquatic... Read More

Definition

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

Definition

Arthropod

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

Definition

Animal

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

Definition

Pathogen

What are Pathogens? Pathogens are defined as microscopic organisms, including viruses, bacteria, fungi, and parasites that... Read More

Definition

Chordata

Chordata Definition What is Chordata? Chordata is the phylum of the animal kingdom that includes a large number of animal... Read More

An artist's depiction of the origin of amphibians

Tutorial

Amphibians & Early Reptiles

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

Definition

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

Definition

Erythrocyte

Erythrocyte Definition Erythrocytes (red blood cells or RBCs) are the myeloid series of specialized cells that play an... Read More

Definition

Kingdom Animalia

Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... Read More

Definition

Transport

In biology, transport refers to the act or the means by which a molecule or ion is moved across the cell membrane or via the... Read More

Definition

Mushroom

mushroom 1. (Science: botany) An edible fungus (agaricus campestris), having a white stalk which bears a convex or oven... Read More

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Primitive Animals

Incorrect taxonomic classifications deemed organisms to be either animals or plants, in the Plantae or Animalia kingdoms... Read More

Definition

Carcinology

Definition noun A biological discipline that studies crustaceans Supplement Carcinology is a branch of zoology that deals... Read More

Definition

Monogenea

Definition noun A group of ectoparasitic tapeworms of the phylum Platyhelminthes Supplement The phylum Platyhelminthes... Read More

Definition

Chelicerate

Definition noun, plural: chelicerates Any of the species belonging to the subphylum Chelicerata Supplement The chelicerates... Read More

Definition

Single cycle circulation

Definition noun A type of blood circulation in which the system has only one circuit, with the blood being pumped through... Read More

Definition

Lamellae

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

Definition

BIOACCUMULATION

Bioaccumulation - a general term for the accumulation of substances, such as pesticides (ddt is an example), methylmercury,... Read More

Definition

Isopod

Definition noun, plural: isopods Any of the members of the order Isopoda, which is a taxonomic group characterized mainly by... Read More

Definition

Cilium

Cilia Definition Cilia are hair-like structures found on the surface of many types of cells, including some mammalian... Read More

Definition

Mantle

Mantle 1. To unfold and spread out the wings, like a mantle; said of hawks. Also used figuratively. Ne is there hawk which... Read More

Definition

Embryology

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

Definition

Parasitism

Organisms depend on different sources of food to survive. Larger organisms like plants make their own food (autotrophs) and... Read More

Definition

Mytilus edulis

Mytilus edulis (Science: marine biology) The edible mussel, a marine bivalve mollusc. They have ciliated gills that are used... Read More

Definition

Respiration

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

Definition

Hemoglobin

Definition noun, plural: hemoglobins A biomolecule made up of haeme (i.e. oxygen-carrying, nonprotein, ferrous component)... Read More

Tutorial

Fish

While insects and similar types of organisms strived to occupy land, the sea was teeming with life aiming to secure their... Read More