What are specialized cells? a. cells that increase in size b. cells that increase in number c. cells that have a need for energy d. cells that have specific jobs to do

The answer is D.

The definition of specialized is: requiring or involving detailed and specific knowledge or training, or having a specific job or task.

That is why specialized cells have specific jobs to do

The answer is not A. B. or C. because all cells grow, multiply, and need energy.

Alright well specialized cell's simply have a specific job to do, as far as functioning in multicellular organisms, and they cooperate to make tissue, such as muscle

Well hope this helps have a nice day :)

b. the carbon cycle ensures living things have a source of hydrogen