Respuesta :
Answer: 1) a stem bends towards light. Tropism is the way a organism responds to its surrounding, the plant bends to the light, to survive.
2) Stems and Gravity. The plant wants to be towards the sun, and as close to the light as possible, gravity pushing down, will negatively effect the plants efforts to reach the light.
Hope this helps :)
A stem bends toward the light illustrates tropism
A stem is a plant part that has a negative tropism towards the gravity stimulus.
Tropism is the growth of an organism usually a plant in response to an external stimulus
Positive tropism is growth towards a stimulus. For example, a plant moves towards sunlight.
Negative tropism is growth away from a stimulus. For example, a plant's shoot moves away from gravity.
Types of tropism
- Gravitropism - response of an organism in response to gravity
- Phototropism - response of an organism in response to light
- Thigmotropism - response of an organism in response to touch
To learn more about tropism, please check: https://brainly.com/question/23413173?referrer=searchResults