Question

complex multicellular organisms like humans contain cells that are organized into increasingly complex internal structures: tissues, organs, and organ systems. these structures carry out the functions of life. select the true statements. all organisms contain organs. humans are made of many cells. cells can combine to form complex structures. all living things are made of cells.

Explanation:

• "All organisms contain organs" is false as single - celled organisms don't have organs.
• "Humans are made of many cells" is true as humans are multicellular organisms.
• "Cells can combine to form complex structures" is true as stated in the text about tissues, organs, and organ systems in humans.
• "All living things are made of cells" is a fundamental tenet of the cell theory.

Answer:

• Humans are made of many cells.
• Cells can combine to form complex structures.
• All living things are made of cells.