Write and Discuss
Respond in writing to the questions, then compare and discuss your answers with someone else.
Name two organ systems and describe their functions.
How does the cardiovascular system work with the respiratory system?
What are the main parts of the cardiovascular system?
How many kinds of tissues make up the wall of the heart?
How do the trillions of cells in a human body work together in a cooperative whole?
Other multicellular organisms (from mice to mushrooms to maple trees) have different kinds of cells. Some are more different than others. Mice have cells roughly similar to ours. But maple trees have very different kinds of cells, and their organs include things like roots and leaves.
How are humans more similar to single-celled animals like amoebas than they are to multicellular plants? And the reverse: how are humans more similar to multicellular plants than to amoebas?