Bio 112 - Study guides, Class notes & Summaries

Natural selection: Basic requirement for natural selection to occur in a population: organisms in the same population must differ from one another in their heritable traits. Examples of natural selection and evolution at work include which of the following? -The case of the bacteria Staphylococcus aureus resistance to first penicillin, then methicillin, and now vancomycin. -Housefly resistance to DDT within a decade of its introduction. -Weed resistance to herbicides. -The progression of ...

Osmosis is the movement of Answer water through a selectively permeable membrane down its concentration gradient The ability of an organism to sense and react to changes in its body illustrates Answer responsiveness In negative feedback mechanisms, changes away from the normal state Answer stimulate changes in the opposite direction to restore normal levels Which of the following are living organisms simplest unit? Answer cells An organic compound always contains Answer carbon and hy...

BIO 112 Exam 3 Questions with complete solutions

Bio 112 Exam 1 Questions and Answers Already Passed What is the role of transcription factors in gene regulation? Transcription factors are proteins that bind to specific DNA sequences to promote or inhibit the transcription of genes. How do lipids contribute to the structure of cell membranes? Lipids, particularly phospholipids, form a bilayer in cell membranes that provides barriers for cell compartmentalization and regulates permeability. What is the significance of the pH sca...

BIO 112~ Exam Review Latest Version with Verified Solutions One definition of evolution is that evolution is "descent with modification". What does "modification" refer to in this definition? (1) Mutation and (2) Sexual Mixing What is the only statement that is NOT true about the genetic relatedness of life on Earth? Gorillas are the closest living relative to humans All but one feature listed below are shared between family trees and phylogenetic trees. Represent population...

Bio 112 Exam Martin Ball State Questions and Answers Already Passed mollusca body plan shared features -foot: mass of muscle tissue used for movement and/or manipulation -visceral mass: clump that contains most of the organs -mantle: tissue that drapes over the organ clump and secretes the shell in shelled members 4 characteristics shared by all animals -eukaryotic- membrane bound nucleus and organelles -multicellular -heterotrophic- consumes food to get energy -have tissues...

Duquesne Bio 112 Exam 2 Latest Update Graded A+ Conjugation DNA from a donor cell is transferred to an adjacent recipient cell Transformation DNA released into the environment by dead cells is taken up by a recipient cell Transduction DNA is transferred from a donor to a recipient cell by a virus Three domains Eukarya Archaea Bacteria Eukarya and Archaea are more closely related Archaeon Enviornments Many archaea are extrelmeophiles carbon fixation and respiration Bacter...

Bio 112 Exam 3 Janes TAMU Latest Update Graded A+ Bryophytes Characteristics Vascular: no Seed Bearing: no Dominant Generation: gametophyte Examples/Phyla: liverwort, mosses, hornwort Special features: use spores, no seeds, need water for reproduction Paleozoic or Mesozoic: Paleozoic Ferns Characteristics Vascular: yes Seed Bearing: no Dominant Generation: sporophyte Examples/Phyla: monilophyta Special features: have sporangium Paleozoic or Mesozoic: Paleozoic Gymnosperms C...

BIO 112~ Exam Review Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test

Bio 112 UBC Questions and Answers 100% Pass What does the cell theory state? 1. all organisms are made up of cells 2. cells are the basic units of structure and function in organisms 3. cells come only from preexisting cells because cells are self-reproducing All cells include what 4 things? 1. DNA 2. Cell membrane 3. Cytoplasm 4. Ribosomes What is the central dogma? It's the basic flow of information in a cell, it's the two step process of transcription and translation by wh...