Single-celled organisms utilize organelles to maintain homeostasis, while large multicellular organisms, such as humans, use organs to maintain homeostasis. How are organelles and organs similar?

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a
Organs are specialized for metabolism while organelles are specialized for homeostasis.
b
Organelles are similar in structure to organs.
c
Organelles are specialized for cellular respiration while organs are specialized for breathing.
d
Organelles have similar regulatory functions to organs.

d

Organelles and organs both have regulatory functions to maintain homeostasis.

b. Organelles are similar in structure to organs.