AP BIOLOGY

PLANTS

PLANT REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An example of a plants response to stimuli in its environment is ____
A
when a plant dies due to lack of water
B
when a plant bends to reach the sunshine
C
when a plant grows taller than normal because of fertilizer
D
All answers are correct
Explanation: 

Detailed explanation-1: -Response to environmental stimuli is known as tropism and the stimuli may be light, water, gravity, etc. Various types of tropism are: Phototropism: Movement or growth of plants towards light is called phototropism. For example, sunflower turning towards the sun.

Detailed explanation-2: -Plants also detect and respond to the daily cycle of light and darkness. For example, some plants open their leaves during the day to collect sunlight and then close their leaves at night to prevent water loss. Environmental stimuli that indicate changing seasons trigger other responses.

Detailed explanation-3: -Stimulus in plants The plant responds to many types of external stimuli such as light, gravity, weather, and touch. The response of a plant is either positive (grow towards the stimulus) or negative (grow away from the stimulus). For example, phototropism is the plant’s response to stimulus, i.e. sunlight.

Detailed explanation-4: -Examples of stimuli and their responses: You are hungry so you eat some food. A rabbit gets scared so it runs away. You are cold so you put on a jacket.

There is 1 question to complete.