Bio Quiz 2 answers 100% correct

Quiz 2 Part 1 of 7 - Chapter 2 27.0 Points Question 1 of 31 3.0 Points If an electron is shared between two elements, the strongest bond forms referred to as what?  A. van der Waals interaction  B. Ionic bond  C. Hydrogen bond  D. Covalent bond Feedback:Great job. Question 2 of 31 3.0 Points An atom that does not contain equal numbers of protons and electrons is referred to as what?  A. Electron transfer .  B. Carbon dating  C. Ion  D. Bond Feedback:Great job. Question 3 of 31 3.0 Points Practically speaking, a buffer is the reason for what?  A. Why we can ingest acidic substances and not die  B. Why water tastes different to each of us  C. Why we shouldn’t eat white bread  D. Why gardens are a good hobby Feedback: Great job. Question 4 of 31 3.0 Points At the most fundamental level, what is life made up of?  A. neutron  B. matter  C. isotope  D. atom Feedback:Great job. Question 5 of 31 3.0 Points Which is more likely to dissolve in water?  A. olive oil  B. fat  C. glucose  D. wax Feedback:Great job. Question 6 of 31 3.0 Points Which is an example of an isotope?  A. Halogens  B. Actinides  C. Carbon-12  D. Hydrogen-1 Feedback:Great job. Question 7 of 31 3.0 Points Proteins include all of the following except what?  A. hormones  B. water  C. phospholipids  D. DNA Feedback:Proteins are one of the most abundant organic molecules, and do not include lipids. Review proteins in Chapter 2. Question 8 of 31 3.0 Points A bond between two atoms that occurs frequently, but does not require much energy to break is referred to as what?  A. Hydrogen bond  B. van der Waals Interactions  C. Covalent bond  D. Ionic bond Feedback:Great job. Question 9 of 31 3.0 Points What is the capacity of a substance to withstand rupture when placed under tension or stress?  A. solvent  B. covalent bond  C. surfact tension  D. cohesion  E. adhesion Feedback:Great job. Part 2 of 7 - Chapter 12 27.0 Points Question 10 of 31 3.0 Points What term describes the wings of insects, bats, and birds?  A. homologous  B. analogous  C. apomorphy  D. synapomorphy Feedback:Great job. Question 11 of 31 3.0 Points Which is the correct order of classification from largest group to smallest?  A. Canis, Eukarya, Chordata, Canidae, lupus, Animalia, Mammalia  B. Species, Genus, Family, Order, Class, Phylum, Kingdom, Domain  C. Phylum, Kingdom, Domain, Class, Species, Genus, Family, Order  D. Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species Feedback: Great job. Question 12 of 31 3.0 Points How has molecular systematics changed the how organisms had been classified?  A. Morphologic homology has allowed for the calibration of a molecular clock.  B. Sometimes errors are uncovered and taxa are reclassified from molecular systematics.  C. Molecular systematics has confirmed earlier classifications.  D. Classification has reverted to the Linnean system based on molecular systematics. Feedback:Molecular systematics uses molecular information including DNA sequencing to study the relationships between organisms. Read more in Chapter 12. Question 13 of 31 3.0 Points What is the scientific name of wolves in binomial nomenclature?  A. Wolves and Dogs  B. Canis lupus  C. Mammalia  D. Canidae Family Feedback: Great job. Question 14 of 31 3.0 Points Which best describes the assumption maximum parsimony is built on?  A. Molecular data is superior to morphological data when reconstructing evolutionary events.  B. Evolutionary events occurred in the simplest, most obvious way.  C. All of life evolves as a goal driven process under the direction of a higher power.  D. Shared derived characteristics define monophyletic groups. Feedback:Great job. Question 15 of 31 3.0 Points What is a diagram used to represent evolutionary relationships between taxa called?  A. clade  B. phylogeny  C. branch  D. systematic Feedback:Great job. Question 16 of 31 3.0 Points Which assumption of cladistics is correctly stated?  A. There are multiple universal last common ancestors (LUCA).  B. Traits remain homologous and unchanged from one state to another.  C. Speciation can produce two to four new species.  D. The polarity of a character state change can be determined. Feedback:Great job. Question 17 of 31 3.0 Points What term describes the forelimb bones of a bird, bat, horse, whale and human?  A. homologous  B. synapomorphy  C. apomorphy  D. analogous Feedback:Great job. Question 18 of 31 3.0 Points Currently the diversity of all life on earth is contained in 3 domains which are:  A. Family, Genus, Species  B. Archaea, Bacteria, Eukarya  C. Bacteria, Animals, Plants  D. Phylum, Class, Order Feedback:Great job. Part 3 of 7 - Lecture ELF 9.0 Points Question 19 of 31 3.0 Points What is the term for microevolutionary changes that accumulate over a long time period resulting in different species and significant variation among living organisms?  A. Natural Selection  B. Coevolution  C. Macroevolution  D. Convergent Evolution  E. Microevolution Feedback:Great job! Question 20 of 31 3.0 Points Evolutionary change that happens on short time scales from one generation to the next within a population is called what?