Both the internal as the external anal sphincter.
Fat cells.
in a cell different cell organelles do different functions(e.g. mitochondria-respiration) in the same way our body has different organs or different organ systems to do different functions(heart-respiration;digestive system-complete digestion and excretion of food)
The levels or organization are: cells -->tissues--->organs--->organ systems--->organism. The heart is an organ of the organ system called the cardiovascular system. This includes the heart, veins and arteries and blood.
Yes, the leaf is considered a plant organ.
tissues combine to form an organ. few organs combine to form an organ system.few organ systems combine to form an organism.....
Amoebas are single-celled organisms that belong to the Protista kingdom. They do not have specialized organ systems like higher-level organisms. Instead, their functions are carried out by different organelles within the cell.
Kidneys
skin
Platypuses have a cloaca, which is used for both excretion and reproduction.
The skin is considered an organ of excretion because it sweats, getting rid of toxins and certain mineral salts.
Worms use their skins for excretion mostly.
The Anus
kidney
Kidneys
The primary organ of excretion is the kidney. Kidneys filter waste products from the blood to produce urine, which is then excreted from the body.
The kidney is the main organ, that is responsible for the excretion of waste products. Other organs of excretion are your liver, lungs and skin.
lung