Polyphyletic group Study guides, Class notes & Summaries

/Giardia/ ((italicized)) - inflammation in digestive track; contaminated water HINT: be on your GUARD (giardia) when drinking water in a different country 3 kinds of Protista - fungus-like, animal-like, plant-like **because Protista are POLYphyletic, fungus-like is closer to fungi than animal-lke About the Eras - Precambrian- single celled bacteria (before Paleozoic) Paleozoic- paleo means old; age of invertebrates then vertebrates evolved Mesozoic- meso means middle; dinosaurs (reptiles) ...

Biology 1108 final exam (cumulative) Solved 100% Correct!!

_________ is the science of classifying living things. - taxonomy _________ is the science of classifying living things. - Taxonomy A ___ group does not contain the most recent common ancestor - polyphyletic A _________ group consists of the most recent common ancestor and some of its descendants. - paraphyletic A ______________ group consists of the most recent common ancestor and all of its descendants. - monophyletic A ______________ group does not contain the most recent common ancest...

What is the science of describing, categorizing and naming organisms? A. systematics B. taxonomy C. cladistics D. phenetics correct answers B. Taxonomy What is the primary reason protists and bacteria are grouped into different domains? A. protists are made of cells but bacteria are not B. bacteria are unicellular but protists are multicellular C. bacteria lack a nucleus but protists have a nucleus D. protists are photosynthetic but bacteria are not E. protists eat bacteria correct...

The scientific discipline of naming and classifying organisms - Answer-taxonomy Two part format of a scientific name (Genus species) - Answer-binomial grouping of species into increasingly inclusive categories - Answer-hierarchical classification The named unit at any level of the hierarchy - Answer-taxon The evolutionary history of a species or group of species - Answer-phylogeny A discipline focused on classifying organisms and determining their evolutionary relationships - Answersystemat...

which are not cephalized mussels, clams, Hemimetabolous (of an insect with aquatic young) undergoing incomplete metamorphosis in which the young does not resemble the adult holometabolus dramatic change Cnidaria cnidocytes, radial symetry, incomplete gut, sting, anemonies, jellies, monophyletic ALL descendants came from one common ancestor paraphyletic Pertaining to a group of taxa that consists of a common ancestor and some, but not all, of its descend...

What type of trait is not useful to construct a phylogenetic tree? correct answer: Analogous traits Which of the following traits are not unique to humans among the great apes? correct answer: Lack of a tail How complete is the fossil record of life on earth? correct answer: It is an incomplete record of Earth's history What is a polyphyletic group of organisms? correct answer: A group that does not include a common ancestor. What is the biological species concept based on? corr...

BSC-116-001 Chapter 26 Exam Questions Correctly Answered. Animals that possess homologous structures probably _____. A. have increased genetic diversity B. evolved from the same ancestor C. are not related D. are the result of convergent evolution E. are the result of similar environmental pressures in different evolutionary lineages - CORRECT ANSWER B. evolved from the same ancestor Homologous structures are similar because of common ancestry. By definition a clade is _____. ...

What are stromatolites? - rocks formed by the accumulation of sedimentary layers on bacterial mats What are stromatolites? - rocks formed by the accumulation of sedimentary layers on bacterial mats When was the oxygen revolution? - 2.7-2.3 bya Oldest Eukaryotes - 1.8 billion years ago Oldest fossil of a multicellular eukaryote - 1.6 billion years ago What is a protist? - polyphyletic group of unicellular eukaryotes when was the earliest direct evidence of life, and where was it...

Monophyletic Group - Answer-includes all the descendants of a common ancestor, and its considered a natural grouping of organisms based on a shared ancestry. Paraphyletic Group - Answer-some (not all) of descendants of a common ancestor Polyphyletic Group - Answer-organisms from distinct lineages based on shared characters, but no common ancestor Homologies - Answer-similarities based on shared ancestry Analogies - Answer-similarities based on independent adaptations Synapomorphies - Answ...