(01.01 HC)Carlos is trying to determine how music affects the growth of bean plants. He hypothesizes that classical music will cause a plant to grow at a higher rate than no music or rap music. He grows nine bean plants in similar lighting, temperature, and soil conditions. Three are exposed to classical music 24 hours a day, three are exposed to rap music 24 hours a day, and three are grown in complete silence. Carlos measures the growth of the plants every day and finds that the plants all seem to have the same rate of growth.What can you infer is missing from Carlos’s scientific investigation?

(03.04 MC)In order for an inherited genetic mutation to result in a phenotypic change for a recessive trait, which of the following must occur?

(01.03 MC)The most significant outcome of the Miller and Urey experiments was that they

  (03.07 HC)You are a forensic scientist on a case of a missing child. You are tasked with using genetic genealogy to determine if a child in custody is the missing child. Currently, you do not have a DNA sample from the child. However, the child has hemophilia, a sex-linked genetic disorder passed from mother to child.Looking at the grandparents and parents of the missing child, you put together this pedigree. The shaded shapes mean the person has hemophilia. The open shapes mean a person does not have hemophilia and they are not a carrier of the disorder. The circles represent females, and the squares represent males in the family. The child in custody is represented with a shaded circle.Could the child in custody be the missing child?

(02.01 MC)Which of the following best explains how hydrogen bonding affects the heat of vaporization for water?

(02.02 MC)Which of the following best explains how a dissecting microscope differs from a compound light microscope?

(03.01 LC)Mutagens, such as pollutants, and UV light can cause mutations in DNA to occur at a higher rate than normal. These mutations may be beneficial in some cases, but often they lead to cancer. Which of the following best describes how cancer cells affect the body?

(01.03 MC)The evolution from vesicles to true cells was enabled by the development of

  (03.03 MC)A forensic scientist shines UV light on a sample and sees no glowing reaction. What can you conclude about the test?

(02.06 LC)Why does darkness affect the light-independent reactions of photosynthesis?