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 living things are made of cells. cells can combine to form complex structures. all organisms contain organs. humans are made of many cells.

Explanation:

• All living things are made of cells: This is a fundamental principle of biology.
• Cells can combine to form complex structures: As stated in the text, complex multicellular organisms have cells organized into tissues, organs, and organ systems.
• All organisms contain organs: This is incorrect. Single - celled organisms do not have organs.
• Humans are made of many cells: Humans are complex multicellular organisms.

Answer:

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