Answer:
D
Explanation:
Cancer cells exhibit uncontrolled and disorganized growth. Formation of new blood vessels is required to bring nutrients and oxygen to cancerous tumors. Cancer cells cannot enter the cell cycle and therefore are mortal. cancer cells enter the cell cycle repeatedly, and in this way they are immortal.
Answer-
Commensalism is a type of relationship where one of the organisms benefits greatly from the symbiosis. The other is not helped but is not harmed or damaged from the relationship. In other words, this is a one-sided symbiotic relationship.
In parasitism, one organism benefits from the relationship but at the expense of the other. The organism may live inside the other's body or on its surface. In some of these parasitic relationships the host dies and in others, it is important that the host remain alive.
Mutualism is a close relationship where both parties benefit. Both species will benefit from the relationship and many of these relationships are ling-lasting.
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The vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves.
