What is the function of structures Y and Z? Z
They enable the flower to undergo photosynthesis.
O They enable the flower to undergo reproduction,
They reduce the amount of nitrates the flower needs.
They reduce the amount of water lost through the flower.

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.