Top Posters
Since Sunday
w
3
w
3
e
3
3
r
3
g
2
2
b
2
M
2
V
2
f
2
c
2
New Topic  
Divya. Divya.
wrote...
Posts: 966
Rep: 0 0
7 years ago
How does carbon dioxide enter a leaf?
A) CO2 passes through openings called stomata on the leaf surface.
B) CO2 diffuses through the epidermal cells into the mesophyll.
C) CO2 is moved by active transport into the leaf by special cells called guard cells.
D) Atmospheric pressure forces CO2 through pits on the leaf surface.
E) CO2 travels dissolved in the water in the xylem.
Read 163 times
1 Reply
Replies
Answer verified by a subject expert
skeledentskeledent
wrote...
Top Poster
Posts: 1329
7 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Divya. Author
wrote...

7 years ago
Brilliant
wrote...

Yesterday
This calls for a celebration Person Raising Both Hands in Celebration
wrote...

2 hours ago
Thank you, thank you, thank you!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  509 People Browsing
Related Images
  
 234
  
 137
  
 299
Your Opinion
Where do you get your textbooks?
Votes: 447

Previous poll results: What's your favorite math subject?