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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
write the names of these animals? 1.amoeba 2.sponge 3.hydra 4.liverfluck 5.Iscariot 6.leech 7.insects 8.oyster 9.starfish 10.frog
What is the notochord? How is this structure formed? The notochord is a rodlike structure that produces the supporting axis of the embryo and gives birth to the vertebral colum
Why, even though they have an open circulatory system, can flying insects like flies beat their wings with great speed? In insects the circulatory system is open but this syste
Circulatory system, closed is a system which uses a continuous series of the vessels of different sizes to deliver blood to body cells and return it back to the heart; it is found
Q. Most insects have wings. Which is the other animal phylum that contains creatures with analogous organs? Besides the phylum Arthropoda another animal phylum with flying crea
a) What is biological magnification? b) Describe how DDT as a water pollutant undergoes biological magnification?
Q. Can you explain Restrictive Ventricular Septal Defect ? VSD is restrictive when VSD pressure gradient is more than 60mmHg (systolic cuff pressure-VSD lpressure grad
Coronal Disassembly -If the existing restoration functionally designed well fitting and esthetically pleasing , -The access the pulp chamber during retreatment is better app
A classical secretory protein vary from a cytosolic protein by having a sequence about 13-35 amino acids long at its N-terminal end called as a signal peptide or signal sequence.
Double fertilization It carries two sperm cells to the female. A characteristic of angiosperms in which the pollen tube gametophyte in the ovule. The one sperm cell fuses with the
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