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Which are the characteristics and organs of the digestive system of earthworms related to the type of diet of these animals?
Earthworms eat decomposing organic material and small organisms ingested together with soil particles. The digestive tubes of earthworms have special structures, such as muscular wall and a gizzard, that triturate the food and scratch it against the ingested soil particles. As annelid digestion is exclusively extracellular earthworms also show in the posterior part of their digestive system structures such as the cecum and the typhlosole that have the function of enhancing the absorption surface of the intestine.
Closed Mitral Valvotomy : This has been 1-eplaced by balloon mitral valvotomy (BMV) in most centres. It is done in cases of either pure mitral stenosis or with .triv
Does radioactive dating with isotopes of uranium and thorium provide an estimate of the starting, middle, or end of the period of Earth's formation? Explain your answer No, th
- The chromosomes at each pole uncoil and elongate to form the chromatin. - A nucleolus reappears at each pole. - Spindle fibers and asters disappear and centrioles split. - A nu
Receptors are sense organs that receive stimuli. On the basis of their location in body receptors are of following types - 1 . Extero receptor - Located at or near t
Self Help Group: The first and perhaps the most influential of substance abuse rehabilitation is Self Help Group. The self help programme was founded in 1935 by two men, Dr. B
Define in brief about the biomolecules Some of the biomolecules, also known as compounds of life, form part of the structure of cell, and some of these are sources of energy fo
give an account of specific characters of phylum porifera
What is the difference between homologous and heterologous immunoglobulins? Homologous immunoglobulin is the human (from the similar species) immunoglobulin. In case of inocula
Q. Symptoms of dyspepsia? The life style modification in terms of work schedules, eating behaviour like consuming meals when extremely tired, quitting alcohol and smoking would
PITUITARY GLAND (HYPOPHYSIS CEREBRI) - It develops from ectoderm of the embryo. The pituitary gland is located just below the hypothalamus. The pituitary gland is situate
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