Answer:
Explanation:
A. The bacteria DNA will contain most of the radioactivity. The reason is that the DNA is made up of a sugar phosphate backbone which forms its structural framework. One grinding up the bacteria, the radioactive phosphate will likely react with the DNA.
B. In the second instance, the proteins will contain the radioactivity this is because, the DNA does not have any reaction with sulphur, on the other hand, proteins contain about 3 - 6% sulphur.
Impulses from nerves in brain to nerves in body through spinal cord
Answer:
Answer to question one is 3). Troposphere
Answer to question two is 2). Stratosphere
Answer to question three is 2). Ozone Layer
Answer to question 4 is 4). Atmosphere provides us with air to breathe
Answer to question five is 3). Stratosphere
Explanation: