When bacterial cells are placed in a nutrient rich medium containing all the nutrients required for the growth of the bacteria, the bacteria exhibit a typical growth curve. Initially on transferring into the medium, the population of bacteria remain the same for a short period called the lag phase. They increase in size and prepare the cells for cell division exhibiting active metabolism. The bacteria then enters the log phase, showing an increase in the number of bacteria in a logarithmic fashion by binary fission. Thus, the lab technician can observe the process of cell division by binary fission under the microscope. The bacterial cells then tend to remain constant in the stationary phase and finally decline in number due to the death of the cells.
Answer:
Photosynthesis produces oxygen for all organisms and a source of food for herbivores. The herbivores (primary consumers) are then consumed by secondary consumers, secondary consumers are then consumed by tertiary consumers. When the tertiary consumers die, they are broken down by decomposers.
Explanation:
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Explanation:
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The small intestine is the longest part of alimentary canal with a length of 4.5 to 7 m and narrow in width, while the large intestine is the hinder-most part of the alimentary canal with a length of 1.5 m. it called the large intestine because it has a width of 4-6 cm. Also in the large intestine circular folds are absent while its present in the small intestine.