49 relations: Ammonia, Aquatic animal, Arachnid, Beak, Bird, Bird egg, Blood, Burping, Carbon dioxide, Cell (biology), Clearance (pharmacology), Countercurrent exchange, Creatine, Defecation, Excretory system, Feces, Guanine, Guttation, Homeostasis, Human waste, Insect, Kidney, Latex, Lung, Malpighian tubule system, Metabolic waste, Organism, Osmoregulation, Oxford University Press, Oxygen, Pathology, Photosynthesis, Plant, Resin, Respiration (physiology), Seabird, Secretion, Skin, Solubility, Stoma, Terrestrial animal, Toxicity, Unicellular organism, Urea, Urethra, Uric acid, Urination, Urine, Water.
Ammonia is a compound of nitrogen and hydrogen with the formula NH3.
A aquatic animal is an animal, either vertebrate or invertebrate, which lives in the water for most or all of its lifetime.
Arachnids are a class (Arachnida) of joint-legged invertebrate animals (arthropods), in the subphylum Chelicerata.
The beak, bill, or rostrum is an external anatomical structure of birds that is used for eating and for preening, manipulating objects, killing prey, fighting, probing for food, courtship and feeding young.
Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
Bird eggs are laid by the females and incubated for a time that varies according to the species; a single young hatches from each egg.
Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.
Burping (also known as belching, ructus, eruptus or eructation) is the release of gas from the digestive tract (mainly esophagus and stomach) through the mouth.
Carbon dioxide (chemical formula) is a colorless gas with a density about 60% higher than that of dry air.
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.
In pharmacology, the clearance is a pharmacokinetic measurement of the volume of plasma from which a substance is completely removed per unit time; the usual units are mL/min.
Countercurrent exchange is a mechanism occurring in nature and mimicked in industry and engineering, in which there is a crossover of some property, usually heat or some component, between two flowing bodies flowing in opposite directions to each other.
Creatine is a nitrogenous organic acid that occurs naturally in vertebrates.
Defecation is the final act of digestion, by which organisms eliminate solid, semisolid, or liquid waste material from the digestive tract via the anus.
The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body.
Feces (or faeces) are the solid or semisolid remains of the food that could not be digested in the small intestine.
Guanine (or G, Gua) is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine (uracil in RNA).
Guttation is the exudation of drops of xylem sap on the tips or edges of leaves of some vascular plants, such as grasses.
Homeostasis is the tendency of organisms to auto-regulate and maintain their internal environment in a stable state.
Human waste (or human excreta) is a waste type usually used to refer to byproducts of digestion, such as feces and urine.
Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.
The kidneys are two bean-shaped organs present in left and right sides of the body in vertebrates.
Latex is a stable dispersion (emulsion) of polymer microparticles in an aqueous medium.
The lungs are the primary organs of the respiratory system in humans and many other animals including a few fish and some snails.
The Malpighian tubule system is a type of excretory and osmoregulatory system found in some insects, myriapods, arachnids, and tardigrades.
Metabolic wastes or excretes are substances left over from metabolic processes (such as cellular respiration) which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted.
In biology, an organism (from Greek: ὀργανισμός, organismos) is any individual entity that exhibits the properties of life.
Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution) to keep the fluids from becoming too diluted or concentrated.
Oxford University Press (OUP) is the largest university press in the world, and the second oldest after Cambridge University Press.
Oxygen is a chemical element with symbol O and atomic number 8.
Pathology (from the Ancient Greek roots of pathos (πάθος), meaning "experience" or "suffering" and -logia (-λογία), "study of") is a significant field in modern medical diagnosis and medical research, concerned mainly with the causal study of disease, whether caused by pathogens or non-infectious physiological disorder.
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities (energy transformation).
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.
In polymer chemistry and materials science, resin is a "solid or highly viscous substance" of plant or synthetic origin that is typically convertible into polymers.
In physiology, respiration is defined as the movement of oxygen from the outside environment to the cells within tissues, and the transport of carbon dioxide in the opposite direction.
Seabirds (also known as marine birds) are birds that are adapted to life within the marine environment.
Secretion is the movement of material from one point to another, e.g. secreted chemical substance from a cell or gland.
Skin is the soft outer tissue covering vertebrates.
Solubility is the property of a solid, liquid or gaseous chemical substance called solute to dissolve in a solid, liquid or gaseous solvent.
In botany, a stoma (plural "stomata"), also called a stomata (plural "stomates") (from Greek στόμα, "mouth"), is a pore, found in the epidermis of leaves, stems, and other organs, that facilitates gas exchange.
Terrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, spiders), as compared with aquatic animals, which live predominantly or entirely in the water (e.g., fish, lobsters, octopuses), or amphibians, which rely on a combination of aquatic and terrestrial habitats (e.g., frogs, or newts).
Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism.
A unicellular organism, also known as a single-celled organism, is an organism that consists of only one cell, unlike a multicellular organism that consists of more than one cell.
Urea, also known as carbamide, is an organic compound with chemical formula CO(NH2)2.
In anatomy, the urethra (from Greek οὐρήθρα – ourḗthrā) is a tube that connects the urinary bladder to the urinary meatus for the removal of urine from the body.
Uric acid is a heterocyclic compound of carbon, nitrogen, oxygen, and hydrogen with the formula C5H4N4O3.
Urination is the release of urine from the urinary bladder through the urethra to the outside of the body.
Urine is a liquid by-product of metabolism in humans and in many animals.
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.