17. According to the heterotroph hypothesis, heat was necessary for life to develop in the oceans of the
primitive Earth because
A) energy is needed to form the bonds used in the
synthesis of organic compounds
B) autotrophic organisins need heat to synthesize
inorganic compounds
C) primitive enzymes require high temperatures to
function
D) high temperatures are necessary for
reproduction to occur in aggregates

To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations

Asegment id dna that is artificially created from two or more organism through use of dna enzymes in a laboratory is called a segment of dna that is artificially created from two or more organisms through use of dna enzymes in a laboratory is called

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.