American Public University SCIN 130 Quiz 6. All 31 QnA. Score 100%.

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Part 1 of 8 - Chapter 13 18.0 Points Question 1 of 31 3.0 Points Why are Protists difficult to classify?  A. They use the same reproductive strategies  B. They are similar in cell structu... re  C. They have varied habitats  D. They are not motile Feedback:Great job. Question 2 of 31 3.0 Points What are two defining characteristics of prokaryotes?  A. multicellular, has nucleus B. single-celled, lacking nucleus  C. multicellular, lacking nucleus  D. single-celled, has nucleus Feedback:Great job. Question 3 of 31 3.0 Points The mitochondria and chloroplasts appear to have originated from what?  A. protists  B. endosymbiosis  C. fungi  D. host cellFeedback:Great job. Question 4 of 31 3.0 Points What is an example of a positive relationship between fungi and plants?  A. infection of stored seeds such as corn  B. mycorrhizae increase nutrient uptake in the soil  C. fungi infecting a potato crop, so that most plants die  D. decay of standing or recently felled trees Feedback:Great job. Question 5 of 31 3.0 Points What type of prokaryote obtains its energy from chemical compounds?  A. phototroph B. chemotroph  C. heterotroph  D. photoautotroph Feedback:Great job. Question 6 of 31 3.0 Points What type of prokaryote obtains its energy from sunlight?  A. chemoautotroph  B. phototroph  C. heterotroph  D. chemotrophFeedback:Great job. Part 2 of 8 - Chapter 14 18.0 Points Question 7 of 31 3.0 Points Double fertilization is unique to what type of plants?  A. ferns  B. gymnosperms  C. mosses  D. angiosperms Feedback:Great job. Question 8 of 31 3.0 Points Basal angiosperms are thought to have branched off prior to the separation of monocots and eudicots and include all but which of the following?  A. laurel trees B. grasses  C. magnolia trees  D. water lilies Feedback:Great job. Question 9 of 31 3.0 Points What is the function of xylem cells in vascular tissue?  A. transport sugars, proteins, and other solutes  B. transport water and nutrients  C. are only found in roots D. are only found in leaves Feedback:Great job. Question 10 of 31 3.0 Points Which is NOT one of the major adaptations of land plants?  A. apical meristems in vascular plants  B. gametangia producing gametes  C. sporangium in which spores are formed  D. the haploid life stage is dominant Feedback:Great job. Question 11 of 31 3.0 Points Which of the following are NOT an example of a fruit? A. berries  B. samaras  C. pine cones  D. string beans Feedback:Great job. Question 12 of 31 3.0 Points Monocots typically lack which of the following?  A. a tap root with lateral roots  B. parallel veins in their leaves C. a seedling with a single cotyledon  D. flowers with 3-fold symmetry Feedback:Great job. Part 3 of 8 - Chapter 15 18.0 Points Question 13 of 31 3.0 Points The Porifera have tiny “hairs” on their cells to move water and food thru themselves. What are these “hairs” called?  A. Spicules  B. Flagella  C. Membranes  D. CiliaFeedback:There is one flagellum in a sponge, and its function is to move water through the sponge. Review Sponges and Cnidarians in Chapter 15. Question 14 of 31 3.0 Points Most nematodes have a distinct mouth and anus. What type of digestive system do they have?  A. convoluted  B. non-existent  C. complete  D. incomplete Feedback:A complete digestive system has a mouth and an anus. Review Flatworms, Nematodes and Arthropods in Chapter 15. Question 15 of 31 3.0 Points Which is NOT a type of body symmetry in animals?  A. Radial B. Equilateral  C. Assymetrical  D. Bilateral Feedback:Great job. Question 16 of 31 3.0 Points A spider is not an insect, but is considered what?  A. Isopod  B. Arachnid  C. Scorpion D. Trilobite  E. Crab Feedback:Great job. Question 17 of 31 3.0 Points Which group are humans most closely related to?  A. amniotes  B. marsupials  C. primates  D. birds Feedback:Great job.Question 18 of 31 3.0 Points Which phylum makes up approximately 85% of the animal kingdom?  A. Arthropoda  B. Echinoderms  C. Cnidarians  D. Amphibia  E. Nematoda Feedback:Review Flatworms, Nematodes and Arthropods in Chapter 15. Part 4 of 8 - Lecture ELF 9.0 Points Question 19 of 31 3.0 Points There are two ways in which non-vascular plants transport water, what is one of them? A. concentration  B. collection  C. scattering  D. diffusion Feedback:Great job! Question 20 of 31 3.0 Points Which word means that an animal does not have a right or left side, but rather planes dividing the animal can be placed in several planes resulting in a pie structure?  A. bilateral  B. spherical  C. traditional D. radial Feedback:Great job! Question 21 of 31 3.0 Points Plants cannot move around to search for water and food; what is the term for this?  A. pedunculate  B. vagile  C. unattached  D. sessile  E. motile Feedback:Great job!Part 5 of 8 - Part 3: Lab ELF 9.0 Points Question 22 of 31 3.0 Points The correlation between two variables is best illustrated by what chart type?  A. Line  B. Scatterplot  C. Pie  D. Bar Feedback:Correct! Choosing the most appropriate chart type for displaying data is extremely important as visualizations are critical for decision making and understanding results. Question 23 of 31 3.0 Points What is the best practice in formatting spreadsheets?  A. Organize data in horizontal rows with first row header B. Organize data in vertical columns with first column header  C. Organize data in horizontal rows with first column header  D. Organize data in vertical columns with first row header Feedback:Correct! It is essential that data is organized logically, especially very large data sets that may have over one million cells Question 24 of 31 3.0 Points Which of the following symbols are needed for Microsoft Excel to perform a calculation?  A. ;  B. /  C. : D. = Feedback:Correct! Performing calculations is an extremely useful tool available in Excel to assist in data analysis. It is beneficial users become familiar with the proper syntax to minimize error and increase efficiency in analyzing data. Part 6 of 8 - Lab Material 15.0 Points Question 25 of 31 3.0 Points The genes responsible for branching, seed coat and number of kernels in maize and teosinte are what type?  A. duplicate gene  B. hidden gene  C. complimentary gene  D. regulatory gene Feedback:Review Lab 6: Origins of Corn Question 26 of 313.0 Points When does it appear that the domestication of corn first began based on mutation rate between maize and teosinte?  A. 76,000 years ago  B. 25,000 years ago  C. 43,000 years ago  D. 9,000 years ago Feedback:Great. Question 27 of 31 3.0 Points What evidence did Dr. Beadle use to support the fact that teosinte was an ancestor of maize?  A. teosinte and maize cannot interbreed  B. teosinte and maize have lots of branching C. teosinte and maize have soft, naked seeds  D. teosinte and maize have similar number of chromosomes Feedback:Great. Question 28 of 31 3.0 Points What type of evidence was archaeologist Dr. Piperno looking for?  A. macrofossils  B. radiocarbon dating  C. microfossils  D. carbon fumes Feedback:Great.Question 29 of 31 3.0 Points How many genes did Dr. Beadle determine were responsible for a few simple changes in teosinte to produce maize?  A. 5 or 6  B. 2 or 3  C. 3 or 4  D. 4 or 5  E. 1 or 2 Feedback:Great. [Show More]

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