The diagram illustrates the bacteriophages used in the Hershey-Chase experiment.
Bacteriophage labeled
with phosphorus-32
Bacteriophage labeled
with sulfur-35
What was the purpose of marking the bacteriophages with phosphorus-32 and
sulfur-35?
a. to track the movements of DNA and sugars
b. to track the movements of DNA and proteins
c. to remove DNA and sugars from the bacteriophages
d. to combine DNA and proteins into a single molecule

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

Astore manager timed janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. it took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. what was the average time it took janette to fold and put away all four items? during a catered lunch, an average of 4 cups of tea are poured per minute. the lunch will last 2 hours. how many gallons of tea should the caterer bring if there are 16 cups in one gallon?