7. Blood does all of the following, except a. Produce stem cells b. Transport endocrine hormones c. Transport oxygen and carbon dioxide d. Destroy invading pathogens

The correct answer is d. Destroy invading pathogens.<br /><br />Blood does not directly destroy invading pathogens. Instead, it transports white blood cells and antibodies, which are part of the immune system, to fight off infections and destroy pathogens. The other options are correct: blood produces stem cells, transports endocrine hormones, and carries oxygen and carbon dioxide.