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Egestion (Excretion): Removal of undigested materials from the digestive tract through defecation. Underlying the process is muscle movement throughout the system through swallowing and peristalsis. Each step in digestion requires energy, and thus imposes an "overhead charge" on the energy made available from absorbed substances.
Mammals excrete urine through the urinary system.. Excretion is elimination of metabolic waste, which is an essential process in all organisms.In vertebrates, this is primarily carried out by the lungs, kidneys, and skin. [1]
Human anatomy of the anorecturm (anus and rectum). Defecation (or defaecation) follows digestion, and is a necessary process by which organisms eliminate a solid, semisolid, or liquid waste material known as feces from the digestive tract via the anus or cloaca.
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). ...
They feed by extending their tentacles and waiting for food to touch the tentacles. They then bring the food to their mouth, ingest and digest the organism. Anything that cannot be digested is egested. Ingestion and egestion occur through the mouth. Like other hydras, Hydra vulgaris cling to a base object with a "foot" pad, shaped like a disk.
Perspiration, also known as sweat, is the fluid secreted by sweat glands in the skin of mammals. [1]Two types of sweat glands can be found in humans: eccrine glands and apocrine glands. [2]
A sub-field of agricultural science has emerged that explores methods of monitoring and improving ecological and related efficiencies. In comparing the net efficiency of energy utilization by cattle, breeds historically kept for beef production , such as the Hereford , outperformed those kept for dairy production , such as the Holstein, in ...
Through sloppy feeding, excretion, egestion, and leaching of fecal pellets, zooplankton release dissolved organic matter (DOM) which controls DOM cycling and supports the microbial loop. Absorption efficiency, respiration, and prey size all further complicate how zooplankton are able to transform and deliver carbon to the deep ocean .