140k views
3 votes
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

User Maturano
by
4.5k points

2 Answers

3 votes
A light levels I did this before
User Jfoucher
by
5.0k points
4 votes

Answer:

A. Light Levels

Step-by-step explanation:

User Felixo
by
4.9k points