Examlex
Which of the following is a characteristic of malignant tumors?
Phosphorus
A chemical element, essential for life, involved in many cellular processes, including energy transfer and the structure of DNA and RNA.
Inhalation
The act of drawing air or other substances into the lungs.
Primary Consumers
Organisms that feed directly on producers in a food chain, typically herbivores that eat plants.
Trophic Level
The position an organism occupies in a food chain, indicating its level of feeding and energy transfer.
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