Not sure but my best guess is to go with B. It just makes the most sense.
Intensity is defined to be the power per unit area carried by a wave. Power is the rate at which energy is transferred by the wave. In equation form, intensity I is
I
=
P
A
I
=
P
A
, where P is the power through an area A. The SI unit for I is W/m2. The intensity of a sound wave is related to its amplitude squared by the following relationship:
I
=
(
Δ
p
)
2
2
ρ
v
w
<span>Meristem cells divide and some of the new cells differentiate into xylem and phloem. </span>
Explanation:
At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes