Respuesta :
Answer:
A. Saprotroph
Explanation:
A saprotroph is described as an organism that gains nourishment from organic matter that has started to decay.
As per the situation, the organism that grows on dead trees, consuming the detritus left by another decomposer are saprotroph.
What is a saprotroph?
Saprotroph, also called saprophyte or saprobe, are organism that grazes on the nonliving organic matter known as debris at a microscopic level.
Bacteria, fungi, etc are examples of saprotrophs.
Thus, option "A" saprotroph.
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