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cathy griffin

cathy g.

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In the practical on enzymes, a standard curve for starch was generated. What is the purpose of generating a standard curve? a. It allowed us to work out the amount of amylase present in the starch-amylase time course reaction. b. It allowed us to work out the unknown amount of maltose produced in the starch-amylase time course reaction. c. It allowed us to work out the unknown amount of starch left in the starch-amylase time course reaction. d. It allowed us to work out the unknown quantity of starch broken down in the starch-amylase time course reaction.

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In experiments showing that there is semantic priming, people typically respond faster to a word when it has been preceded by a semantically related word than when it was preceded by an unrelated word. What is the explanation for this? Group of answer choices there is no explanation yet; researchers are not sure recognizing a word will spread activation to semantically related words, causing them to be harder to recognize subsequently words that are semantically unrelated to one another still activate one another to some degree in the model recognizing a word will spread activation to semantically related words, causing them to be easier to recognize subsequently

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32. The critical angle for an air-glass interface is \( 42.6^{\circ} \). A light ray in air hits the interface, and the reflected ray is \( 100 \% \) polarized. What is the angle of refraction for that ray? A) \( 47.4^{\circ} \) B) \( 55.9^{\circ} \) C) \( 24.3^{\circ} \) D) \( 65.7^{\circ} \) E) \( 34.1^{\circ} \) 33. In a two-slit experiment, the slit separation is \( 3.00 \times 10^{-5} \mathrm{~m} \). The interference pattern is created on a screen that is 2.00 m away from the slits. If the 7 th bright fringe on the screen is 10.0 cm away from the central fringe, what is the wavelength of the light? A) 100 nm B) 204 nm C) 214 nm D) 224 nm E) 234 nm

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8 pts 1 Details Aponi is a personal chef in Orlando who charges \( \$ 175 \) per meal; Each meal costs \( \$ 50 \) to make and her monthly expenses are \( \$ 2600 \). If Aponi sells 60 meals, how much profit does she make? \( \square \) Let \( \boldsymbol{x}= \) the number of meals sold. Write an inequality using \( x \) that represents the problem of finding how many meals she must sell to make a profit of at least \( \$ 2400 \).

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wage; = \hat{\beta}_0 + \hat{\beta}_1 educi where wage = yearly salary educ = years of education Given the OLS regression line, which of the following best represents the residual for the ith observation? The actual wage plus the wage predicted by the OLS regression line The square of the wage predicted by the OLS regression line The difference between the actual wage and the wage predicted by the OLS regression line The square of the actual wage

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2) The ____ of the brain controls "executive function" activities like thinking, organizing, planning, and problem solving. O parietal lobe O occipital lobe O temporal lobe O frontal lobe

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The smallest level of added or reduced stimulation required to sense that a change in stimulation has occurred is known as the Multiple Choice adaptation threshold. intensity threshold. difference threshold. absolute threshold.

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You cut a plasmid DNA with ApaLI (G*TGCAC) and genomic DNA insert with Sfcl (C*TGCAG). You ligate the two DNAs. This ligated DNA piece can be cut with: Must incubate ApaLI and Sfcl together Neither ApaLI nor Sfcl Sfcl Either ApaLI or Sfcl ApalI

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Classify the following characteristics based on what species concept is described. It was proposed to explain speciation in the fossil record. Identifies species based on a common ancestor Relies on reproductive isolation to identify different species Cannot be tested in nature Does not rely on morphological traits; useful for microorganisms and cryptic species Distinguishes species with diagnostic traits: distinct physical characteristics Morphological Species Concept Evolutionary Species Concept Requires shared evolutionary pathway Phylogenetic Species Concept Not useful for microorganisms or cryptic species Biological Species Concept

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What is the standard deviation for the numbers 1 1 4 0 0 6 2

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