Scientists classify living things in order to organize and make sense of the incredible diversity of life. Modern scientists base their classifications mainly on molecular similarities. They group together organisms that have similar proteins and DNA.
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Answer:
Explanation:
1) Excitation brings about contraction.
2) Contraction leads to an increase in blood pressure.
3) Changes in blood pressure results in the opening and closing of the heart valves.
4) The opening and closing of heart valves then regulates the flow of blood and it's volume.
axesual thats how they reproduce
Explanation:
Biological hazards include microorganisms such as bacteria, viruses, yeasts, molds and parasites. Some of these are pathogens or may produce toxins. A pathogenic microorganism causes disease and can vary in the degree of severity
The stem cell will go through mitosis to cause the differentiated cells it produces to also be cancerous; option A
<h3>What is mitosis?</h3>
Mitosis is a process in cells which accounts for the production of new cells by the division of cells.
Cancer results when there is abnormal growth and division of cells.
Therefore, mitosis occurs or stem cells to become cancerous.
Learn more about mitosis at: brainly.com/question/19058180
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