Cells that perform similar functions combine to form: a) organ systems b)organs c)organisms d)tissues

ACells that perform similar functions combine to form: tissues. A group of tissues working together combine to form an organ system. Organs working together combine to form an organ system. Organ system performing their functions makes an organism.

Explanation:Cells that perform similar functions combine to form tissues. group of tissues working together combine to form an organ system. Organs working together combine to form an organ system. Organ system performing their functions makes an organism.

i think the answer is gold im not entirely sure

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