Answer: B. 6 cm
Explanation:
First we take down the information given to us,
distance from the lens to the image (v) = 24cm
distance from the original object to the lens (u) = 8cm
So using the formula
1/u + 1/v = 1/f
Where f is the focal length
So we just input our information
1/8 + 1/24 = 1/f
Therefore;
3/24 + 1/24 = 1/f
4/24 = 1/f
1/6 = 1/f
f = 6
Our focal length = 6cm
It depends directly on RECEPTOR MOLECULES
Heart pumps blood to your body and it has four chambers. Two Atriums and Two Ventricles.
It protects us from ever present bacterial infections.
The answer is : A bios or cmos jumper. The jumper acts as a switch by closing (or opening) an electrical circuit. Clearing the CMOS on your motherboard will reset your BIOS settings to their factory defaults. After clearing the CMOS, you'll need to access the BIOS setup utility and reconfigure your hardware settings.