B because cactus' are usually in a dry environment, they close their stomata during the day to keep water vapor from leaving the plant. Instead they do their processes at night to avoid extreme water loss.
<span>In many plants, stomata are found only on
the lower surface of the leaf. The most likely explanation for this fact
is that water loss would be less on the shaded lower surface than in
direct sun. </span>
Answer:
14 cm
Explanation:
Oh, this is a trick question! The thing is, the plant was <u>already 4 cm </u><u>on Day 0</u>. So from Day 0 - Day 15, the plant actually only grew (18 - 4 =) 14 cm.
They got you this time, but hopefully you know to watch out next time. I hope this helps!
I think its C.
I hope this helps and please do correct me if im wrong.
