Certain flowers will open for twelve hours and then close. Which stimulus do the flowers respond to when they open and then when they close for that time period? a. light levels

b. moon phases

c. seasonal temperatures

d. carbon dioxide levels

explanation:

pay attention. give the speaker your undivided attention, and acknowledge the message.

show that you're listening. use your own body language and gestures to show that you are engaged.

provide feedback.

defer judgment.

respond appropriately.

on these days , humidity is very f.) high