Biology Praxis Exam Study Questions And Answers 100% Verified Review A+

Biology Praxis Exam Study Questions And Answers 100% Verified Review A+ A researcher hypothesizes that lectures do not convey information as well as written passages in a textbook do. The researcher separates 48 college freshman volunteers into two groups of 24, with an equal number of males and females in each group. One group hears a passage repeated three times over a two‑minute period. The second group reads the same passage for two minutes. All test subjects are then asked to write down as much as they remember of the passage. Which of the following is the independent variable in the experiment? - ANS-The method by which the passage is presented to the test subjects Human skin color, height, and weight depend on the interaction of the products of multiple genes. These and other polygenic traits typically exhibit - ANS-continuous variation Which of the following properties of water is responsible for the solubility of many molecules in aqueous fluids such as blood and urine? - ANS-The polarity of water molecules Which of the following correctly matches a phylum with the most common mode of excretion by organisms in the phylum? - ANS-Annelida . . metanephridia Which of the following is the best example of habitat fragmentation? - ANS-Building a highway though a forest Which of the following best explains why the body makes a more rapid and stronger response to an infecting pathogen after vaccination against the pathogen? - ANS-Memory lymphocytes made in response to the vaccination are activated. Which of the following enzyme types is most likely responsible for the cleavage of the plasmid shown above? - ANS-Restriction endonuclease To study the inheritance of wing size in fruit flies, true-breeding female flies with large wings were crossed with male flies with miniature wings (Cross 1). The F1 progeny were then crossed. The reciprocal parental cross (Cross 2) was also performed, and the F1 progeny were crossed. The crosses and the results are summarized in the table above. Based on the data, which TWO of the following statements are most likely correct? - ANS-...