When seeds germinate, roots grow downward and stems grow upward in response to gravity. This response to gravity is called _______.
A. phototropism B. hydrotropism C. thigmotropism D. geotropism

Respuesta :

D. geotropism. Phototropism is the response to light, hydrotropism is the response to moisture, and thigmotropism is the response to a touch stimulus

Answer:

D. Geotropism

Explanation: