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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
Class of Crustacea - Branchiopoda These are small fresh water crustaceans. The trunk appendages are flattened and leaf like and are helpful for locomotion also respiration he
in molluscathe foot is used for (capturing locomotion or both
Signify the term - Pectoral girdle. Bones in vertebrates that connect the appendages on the left and right side of the anterior appendicular skeleton to each other. Pectoral gi
Q. Which are the kinds of neurons that participate in the spinal arch reflex? Where are their cell bodies situated? In the arch reflex first a sensory neuron located in the gan
Q. Which chemical elements are involved to form most of living biological matter? Ans The chemical elements that form most of the molecules of living beings are carbon (C)
Initial Maintenance Steps of implants It is very essential, that from the beginning of the patient interaction regarding the implant therapy, through the diagnosis and planning
How it respire
An increase in blood plasma levels of parathyroid hormone A. occurs in response to enhance in the levels of calcium ions in blood plasma. B. leads to enhance in the amou
Development and Differentiation of a flowering plant The developmental phases of a flowering plant involve seed germination, vegetative growth, flowering, fruiting and senesce
Studying life histories of insects Cut large rectangular holes in the sides of a big cardboard container and cover them with muslin folded over at the edges and gummed or paste
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