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What is the system that permits movement and fixation to echinoderms?
The system that allows movement and fixation to substrates in echinoderms is known as the ambulacral system. In these animals water enters by a structure called madreporite, passes by channels and reaches the ambulacral feet in the undersurface of the body. In the ambulacral region in contact with the substrate, there are tube feet filled and emptied by water therefore acting as suckers
Biology is becoming a more quantitative science, a trend that has motivated and been recently spurred by advances in computing power and data-gathering technologies. Nowhere is th
MECHANISM - 1 . AURICULAR SYSTOLE - First of all from complete body impure blood comes in R.A. by superior and inferior vena cava or pre and post cavals. Pure blo
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Explain Long-term Risk Estimation ? Many studies have examined long-term risks associated with risk factors using traditional epidemiological methods. Framingha investigators
Regarding the article "Baby Blues" which of the following is a false statement? A. Children, whose mothers underwent severe stressful episodes during pregnancy, have higher tha
Determination of Vitamin A Vitamin A assay is carried out by chemical method. This method is called Carr Price Reaction. Vitamin A and the carotenoids produce an intense b
Plasma membrane and cell wall is not the similar thing. Plasma membrane, also known as cell membrane, is the outer membrane common to all living cells and it is made of a phospholi
Is there a exchange of cells between the mother and the fetus through the placenta? Under normal conditions, there is not a passage of cells across the placenta during gestati
Explain Operation for Patients with High Pulmonary Vascular Resistance ? When the pulmonary vascular resistance is very high (6-8 units/m2) closure of ASD is done either with
Class of Crustacea - Branchiura Branchiura involves only around 130 species of ectoparasitic crustaceans living mostly on the integument and gill cavities of freshwater and ma
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