Which organisms obtain energy from dear decaying matter

Decomposers

Explanation:

This group is made up of fungi, bacteria, and invertebrates. These organisms obtain their energy from breaking down dead organisms.  

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

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tobey