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VACUOLES
Some animals cells may have one to a few small fluid filled vacuoles.. Plants cells in general possess one or a few large vacuoles. Vacuoles of animals cells arise from golgi complex and are hence a part of the cytoplasmic endomembrane system . Obviously, these are bound by the same trilaminar units membrane these serve for storage and transport of dissolved nutritive secretory excretoty substances . and for the maintenance of an intracellular turgor pressure some freshwater animals cells possess one two or a few contractile vacuoles for osmoregulation such a vacuole is bound by a simple and delicate condensation membrane different from typical unit membrane.
Define Future challenges for scaling from individual to ecosystems? Scaling of biogeochemical fluxes in terrestrial systems has confirmed much harder. While ecosystem ecologist
In a properly functioning negative feedback system A. value of the controlled variable will always be very close to the threshold value when the system is in steady state.
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Is crossing over important for the diversity of biological evolution? Sexual reproduction and recombination of linked genes (crossing over) are, with mutations, the main instru
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Two true-breeding pea plants were crossed. One parent is round, terminal, and violet, constricted, while the other expresses the respective contrasting phenotypes of wrinkled, axia
Q. Are the veins or the arteries constituted of more muscle tissue? How different are the walls of these two kinds of blood vessels? The arterial system has thicker muscle wall
What is the secondary structure of a protein? The secondary protein structure is formed by the manner its amino acids interact by the intermolecular bond. These interactions ma
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