For which of the following set of variables,a chi square test should be applied?
A. Either dependent or independent variable is a discrete variable.
B. Discrete dependent variable and continuous independent variable
C. Both dependent and independent variables are discrete variables.
D. Discrete independent variable and continuous dependent variable.
Ans: C. Both dependent and independent variables are discrete variables.
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ATP has a phosphate transfer potential of 30.5, whereas glucose-6-phosphate has a phosphate transfer potential of 13.8. Based on these differences, which of the following will happen?
A. Glucose-6-phosphate will transfer phosphate to ADP forming ATP. B. ATP will transfer phosphate to glucose-6-phosphate. C. ATP will transfer phosphate to phosphoenolpyruvate. D. Phosphates will not be transferred between these molecules.
The invertebrate phylum having the greatest species diversity is Arthropoda
Indicate whether the statement is true or false
Acetylcholine is a neurotransmitter released by motor neurons that causes skeletal muscle fibers to relax.
a. true b. false
There are currently many similar-looking but different species on either side of the Isthmus of Panama. They most likely resulted from
A) allopatric speciation. B) random mutations. C) hybridization. D) sympatric speciation. E) temporal isolation.