The chromosome must be duplicated before mitosis.
Mitosis is where a parent cell divides and produces 2 genetically indentical daughters cells. This process first requires the parent call to duplicate all of its genetic material. This ensures that the daughters cells are genetically identical to the parent cell and also the other daughter cell.
This is important because mitosis is used in many cases in living things such as growth, repair, and more. This ensures us for example not suddenly changed to another organism or another characteristic.
The answer is b, chloroplast.
<span>The primary hypothesis is that they were led to extinction by hunting by humans.
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Answer:
Plague is caused by Yersinia pestis. It is unicellular and placed in the bacteria domain.
Explanation:
Plague is caused by bacteria Yersinia pestis , a zoonotic bacteria usually found in the small mammals and their fleas. It is a gram-negative, nonmotile, rod-shaped, coccobacillus bacteria, with no spores. It is a facultative anaerobic organism that can infect humans via the Oriental rat flea.Y. pestis was discovered in 1894 by Alexandre Yersin, a Swiss/French physician and bacteriologist from the Pasteur Institute, during an epidemic of the plague in Hong Kong. Yersin was a member of the Pasteur school of thought. Kitasato Shibasaburō, a German-trained Japanese bacteriologist who practised Koch's methodology, was also engaged at the time in finding the causative agent of the plague. However, Yersin actually linked plague with Y. pestis. named Pasteurella pestis in the past, the organism was renamed Yersinia pestis in 1944.
