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In a Brinell hardness test, a 1500-kg load is pressed into a specimen using a 10 mm diameter hardened steel ball. The resulting indentation has a diameter = 3.2 Determine the Brinell hardiness number for the metal. If the specimen is steel, estimate the tensile strength of the steel.
Their water vascular system with tube feet is unique. Sea lilies (Crinoids) might be closest to the ancestral echinoderm. Other groups are modified from this. Chordates -An interesting sidelight: Which side is up.
Scenario: Jake is a 15-year-old high school sophomore who has earned high grades every semester since middle school. He plays on the varsity baseball team and is well liked by his classmates. Lately, his grades have significantly dropped to the point..
Data suggest that rubisco (ribulose-1,5-bisphosphate carboxylase) makes up 10% of the total protein found in spinach leaves. Research elucidating the structure of rubisco shows that it has four active sites. Why, with four active sites, might ther..
The ligamentum teres (round ligament) of the liver forms fromthe fetal:
A mouse has genotype AaBb. He inherited both dominant alleles (A and B) from his mother and both recessive alleles (aand b) from his father
q. multicellular animals have some mechanism to control cell mass that we do not understand for in case salamanders of
The conversion of molecule S to productP has a Keq = 0.75. Two different, but relatedenzymes, A and B, can catalyzethe reaction. The product P serves as anallosteric inhibitor of enzyme B, but not ofenzyme A.
List the species involved, who benefits from this relationship and describe this interaction.
Explain why in the evolution of ancestral eukaryotes, might it have been advantageous for separate organisms to become united into a single organism?
Understand and discuss how the flow of nutrients differs from the dlow of energy in an ecosystem.
Describe the three different types of bonds, providing examples of compounds (or interactions) formed through each type of bond. (3 points)--Answer below:
In organic molecules, carbons can be thought of as "reduced" or "oxidized". Which of these terms best describes the carbon atoms in glucose? In CO2?
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