[Campbell Biology P.895] Which statement accurately reflects a difference in the understandi... | Practice Question

Which statement accurately reflects a difference in the understanding or function of hormones between plants and animals, as discussed in the text?

  • A: Animal hormones always act locally, while plant hormones are transported systemically.
  • B: The concept of "hormone" primarily originated from plant studies and was later applied to animals.
  • C: Unlike animals, plants lack a circulatory system for widespread hormone transport.
  • D: Signaling molecules like glucose in animals typically occur at concentrations thousands of times greater than their hormones.

Explanation

The text explicitly states under 'General Characteristics of Plant Hormones' that 'plants don't have circulating blood to transport hormone-like signaling molecules,' which directly supports option C. The other options either misrepresent information or attribute characteristics to the wrong organism.