BIO 189 MIDTERM EXAM ACTUAL 2025/2026 CORRECTLY ANSWERED

Content Preview

BIO 189 MIDTERM EXAM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Why do scientists typically design experiments that will yield quantitative results? - Answer -Quantitative results minimize the potential for bias. What is a characteristic of eukaryotes? - Answer -Their DNA is contained in a nucleus. Scientists perform ____ in order to ____ a given ____. - Answer -experiments; test; hypothesis What practice helps scientists avoid bias in their findings? - Answer -designing experiments that yield quantitative results What name is given to the scientific study of life? - Answer -biology Which of the following represents the most correct order of the organization of life from the smallest unit to the largest? - Answer -atoms ® molecules ® cells ® organisms ® populations ® communities ® ecosystems ® biosphere Which of the following characteristics are shared by all living organisms? I. hereditary information is passed to offspring II. adaptation to environmental change III. requirement for nutrients IV. Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com DNA housed in a nucleus - Answer -I, II, and III Which of the following organization levels is the least inclusive? - Answer -atom In the scientific name, Pan paniscus, Pan represents the name of the ____, while paniscus represents the name of the ____. - Answer -genus; species If a hypothesis stands after years of repeated testing, is consistent with all data gathered, and helps make successful predictions about other phenomena, it is considered to be a ____. - Answer -scientific theory A triglyceride molecule is made up of ____. - Answer -one glycerol and three fatty acids Carbon has an atomic number of 6. Carbon 14 has _____. - Answer -8 neutrons and 6 protons Nucleotides are monomers of ____. - Answer -nucleic acids The breakdown of large molecules by enzymes and the addition of water is known as a ____ reaction. - Answer -hydrolysis Glycogen is a polysaccharide used for energy storage by ____. - Answer -animals Extracellular matrix is typically composed of ____. - Answer -polysaccharides and fibrous proteins The presence of circular DNA in mitochondria and chloroplasts suggests that these organelles evolved from ____. - Answer -bacteria Eukaryotic cells have their DNA enclosed in the _____. Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com