pigments are responsible for that if that doesn't help you. you can go to yahoo answers and search your question
The answer to the question is c
The function of the digestive system is to C. To break down food into nutrients.
To calculate this we will use the light equation:

λ

We have Frequency

.
We know that speed of light in vacuum is

.
Since a unit of speed of light is m/s, we can change the unit of frequency Hz to 1/s, since Hz means cycles per second (f=1/T).
So:

<span>

</span>
<span>

λ

</span>⇒ λ

⇒ λ

⇒ <span>λ</span>
Answer:
B
Explanation:
Hope this helps, oh and did i forget to tell you you got this?