Hershey and Chase studied bacteriophages which are viruses that attack bacteria. They labeled the bacteriophage with radioactive isotopes to see where it goes when a virus attacks. They discovered that nearly all the radioactivity was found in phosphorus, confirming that DNA contains genetic material, not protein.
Answer:
Focal length is 6.67 cm.
Explanation:
Object distance, u, from the lens = 10 cm
Image distance, v, to the lens = 10 cm + 10 cm
= 20 cm
Apply the lens formula to determine the focal length, f, of the lens.
=
+ 
=
+ 
= 
= 
Find the inverse of both sides, so that;
f = 
= 6.67
f = 6.67 cm
The focal length of the lens is 6.67 cm.
You should do the original number (84) multiplied by the percentage (60) and then divide it by 100 to get it as a percentage of the original number:
(84 × 60) ÷ 100 = 50.4kg
Therefore, your answer is 50.4kg :)
Answer:
pollination
Explanation:
this is the obvious answer because pollen and **pollen**ation