What type of cell is an example of an
undifferentiated cell?
A. red blood
B. stem
...
Answers: 2
Biology, 22.06.2019 07:30
Ture or false evidence for evolution includes millions of fossils
Answers: 1
Biology, 22.06.2019 12:30
Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.
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Biology, 22.06.2019 17:00
Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f
Answers: 1
Biology, 22.06.2019 22:00
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.
Answers: 3
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