Scientists describe a period called the great acceleration, in which human activities began significantly altering global systems. which of these human activities have occurred during the great acceleration and have contributed to global changes? select three correct answers.
a. the invention of agriculture
b. the conversion of natural biomes into anthromes
c. advances in medical technology that have greatly reduced the human death rate
d. the rapid increase in the uses of fossil fuels, fertilizers, metal ores, and other resources
e. the exploration of remote places, such as the north pole, south pole, and tall mountain peaks

Imagine you are a student in alfred hershey and martha chase's lab in the late 1940's. you are given five test tubes with the e. coli bacteria that were infected with t2 bacteriophage that have been labeled with 32p or 35s. unfortunately, you forgot to label the tubes and are now uncertain which were 32p labeled and which were 35s labeled. you place the contents of each tube in a blender and pulse it for a few seconds to shear off the protein coats from the bacterial outer membranes. you then centrifuge the contents to seperate the protein coats and the bacterial cells. you then check for radioactivity and obtain the results shown below. which tubes contained e. coli infected with the phage labeled with 32p? select all tubes that apply.