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Similar to all animal cells, protozoans are covered by a plasma membrane which surrounds cytoplasm of the cell, protozoan's integument or skin. Like all membranes, it's permeable; water and low molecular weight substances dissolve in it. Oxygen, is required for metabolism, and metabolic wastes which are generated by metabolism, diffuse across the surface, giving plasma membrane respiratory and excretory functions. Nucleus, with its nucleolus and chromosomes, contains genetic material and would be involved in providing copies of itself for new cells, reproductive system. Golgi apparatus, rough endoplasmic reticulum, and lysosomes which they produce, fuse with ingested food vacuoles, phagosomes.
Which statement is true of the energy levels of electrons in shells? A) All the electrons in an atom have similar amounts of energy. B) Electrons must lose energy to move from the
Cytoplasmic inclusions are cytoplasmic molecular aggregates, like as pigments, organic polymers and crystals. They are not considered cell organelles. Fat drops and glycogen gra
Amantadine Treatment with oral amantadine or rimantadine begun within 48 hours after the onset of illness decreases the duration of fever and symptoms by about 1 day. Whether t
Regeneration - Root and Shoot Morphogenesis Higher plants have three kinds of regenerative activities; All plants possess inherent ability to regenerate lost parts. Fo
What are the main biological functions of the polysaccharides? Polysaccharides have an energy storage function and a structural function. Polysaccharides incorporated by living
Q. What benefits can commensalism offer to a species? The Commensalism may involve obtainment of food (for instance, the innocuous bacteria of the human gut), shelter or suppor
significance of amoebozoa
Cold Chain System Vaccines are sensitive to heat. On exposure to heat their potency is lost. Once a vaccine has lost its potency it cannot be regained, so it is important
All about thallophyte
When did life appear on earth? It is estimated that the life on earth emerged about 3.5 billion years ago, thus 1 billion years after the formation of the planet.
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