It is true! Contaminated groundwater is very difficult and sometimes impossible to purify!
A congestive heart failure is a condition in which the blood vessels of the heart are not functioning appropriately due to blockages caused by excess fat, hereditary conditions, and poor lifestyle habits.
Ultimately it affects all the body systems and processes because the heart is the organ necessary in pumping blood throughout the body and supplying it with ample oxygen and nutrients. Without the proper functions of the heart, the organ systems will also malfunction causing other complications that may eventually lead to a person's death.
Pretty sure the answer is letter C.Hope I helped.
Answer:
D. cell theory
Explanation:
According to my research on studies based on genetics and biology, I can say that based on the information provided within the question the idea being described in this situation is called Cell Theory. This theory (like mentioned in the question) states that all living organisms are made up of cells, which are the building blocks of all organisms, and that these cells come from pre-existing cells.
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