12/3/2023 0 Comments Unit 6 exam project stem![]() ![]() Insertion of new elements into a list is easier to code for an array than for an ArrayList.Ĭ. Removal of elements from a list is easier to code for an array than for an ArrayList.ī. Which of the following is the best reason to implement each list with an array, rather than an ArrayList of Integer (or Double) objects?Ī. Consider writing a program that produces statistics for long lists of numerical data. The array, though, may go out of bounds.Īnswer: using arrays here will avoid the possible problem of going out of boundsĤ. ![]() If any text file is long, ArrayList will automatically be resized. The size method of ArrayList gives instant access to the length of the list.ĭ. The get and set methods of the ArrayList are more convenient than the notation for arrays.Ĭ. The String methods are easier to use with an ArrayList than with an array.ī. If you have a program that reads the lines of a text file into a sequential list of lines, which of the following is a good reason to implement the list with an ArrayList of String objects rather than an array of String objects?Ī. □ Study AP CSA, Unit 6.1: Array Creation and Accessģ. Which of the following can replace / missing code / so that it works as intended? *The following questions were not written by CollegeBoard and although they cover information outlined in the AP Computer Science A Course and Exam Description the formatting on the exam may be different.ġ. That means it should take you around 34 minutes to complete 15 questions. ![]() įacts about the test: The AP Computer Science A exam has 40 multiple choice questions and you will be given 90 minutes to complete the section. Click here for the practice questions: AP Computer Science A Unit 6 Multiple Choice Questions. Bryophytes exhibits 'alternation of generations' in which gametophytic phase (haploid) alternates with sporophytic phase (diploid).⛔STOP!⛔ Before you look at the answers make sure you gave this practice quiz a try so you can assess your understanding of the concepts covered in unit 6.They reproduce both sexually as well as asexually.They have rhizoids instead of true roots. ![]() But, they show more body differentiation than thallophytes. They lack true roots, stem and leaves.They are non-vascular, i.e., they do not have specialized vascular tissues (xylem and phloem) for the conduction of water and food.For this reason they are called ‘the amphibians of plant kingdom’. They are the first plants to live on land, but require moist conditions to survive.It contains chlorophyll and is thus autotrophic in nature. It contains spiral chloroplasts and thin unbranched chains of cylindrical cells.Į. It does not have specific parts like leaves, stems etc. Spirogyra is a type of green algae which belongs to the division Thallophyta. Some of the ornamental ferns are the sword fern- Nephrolepis, the holly fern - Cyrtomium, the leatherleaf fern - Rumohra.ĭ. Ferns are economically important plants as they are used for ornamental purposes. They are found in cool, damp and shady places and have specialized tissues for the conduction of water and food. Ferns belong to the division pteridophyta. The plant body of a pteridophyte is differentiated into root, stem and leaves. ![]()
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