Webgreen glands are found in _____, and they act as osmoregulatory and excretory structures for nitrogenous wastes. aquatic crustaceans. what are some examples of echinodermata? starfish, sea urchin, sea cucumber. describe echinodermata symmetry: bilateral (larvae), five fold radial (adult) Webcoxal gland, in certain arthropods, one of a pair of excretory organs consisting of an end sac where initial urine is collected, a tubule where secretion and reabsorption may take place, and an excretory pore at the base (coxa) of one of the legs. Variations among the species include highly convoluted tubule sections, doubling back of straight tubule …
ZOOL 1604 Lab Practical 3 Flashcards Quizlet
WebMar 12, 2024 · A common characteristic of all vertebrates is. (a) presence of skull. (b) division of the body into head, neck, trunk and tail. (c) presence of two pairs of functional appendages. (d) the body is covered with an exoskeleton. 134. Pneumatic bones are expected to be found in. (a) pigeon. (b) house lizard. WebFigure 22.10. In the excretory system of the (a) planaria, cilia of flame cells propel waste through a tubule formed by a tube cell. Tubules are connected into branched structures … theory of asset pricing george pennacchi
Excretory structures of rotifers are - toppr.com
WebGreen glands can be defined as a pair of excretory organs in each side of the head region of decapod crustaceans, emptying at the base of the antennae. Green glands, also called as antennal or maxillary glands, help carry out excretory functions in crayfish. These glands act much like kidneys in humans and help crayfish remain healthy by ... Webgreen gland: [noun] one of a pair of large green glands in some crustaceans (such as crayfishes) that have an excretory function and open at the bases of the larger antennae. WebMay 29, 2024 · antennal gland (green gland) Either of a pair of ducts (coelomoducts) found in the third segment of a crustacean and opening to the exterior at the base of the second antenna.They function as osmoregulatory organs. For example, in the antennal gland of the freshwater crayfish (Astacus), fluid is filtered from the blood into an end sac … theory of anti gravity