Concept explainers
Figure 1.7 Taxonomic classification of five species that are related at different levels.
Each species has been assigned to ever more inclusive groups, or taxa: in this case, from genus to domain.
From the left, Joaquim Gaspar; © kymkemp.com; Sylvie Bouchard/Shutterstock.com; Courtesy of Melissa S. Green, www.flickr.com/photos/henkimaa; © Grodana Sarkotic.
Figure It Out: Which of the plants shown here are in the same order?
Taxonomy involves the identification of different organisms, classification of the identified organisms into categories, and naming them. The organisms are classified into different groups along with other similar organisms. Eight different taxonomic categories are there, namely domain, kingdom, phylum, class, order, family, genus, and species.
Explanation of Solution
An order is a taxonomic rank that is used for classifying organisms. Order is more specific when compared to class, a taxonomic rank above the order. The plants given in the figure are wild carrot, marijuana, prickly rose, apple, and dog rose. Among the given flowers, marijuana, apple, dog rose, and prickly rose belongs to the same order Rosales.
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Chapter 1 Solutions
EP BIOLOGY TODAY+TOMORROW W/O PHYSIO.
- Below is a phylogenetic tree. Which of the following statements is correct? Species C and D are called sibling taxa because both are derived from the same parent species H. Species F is more related to species K than species D is. Species A, B, and D share a common ancestor of species I. All species shown are currently with us. All of the abovearrow_forwardRemembering the order of the taxonomic system from Domain to species is something you will need to know. One method to memorize a list is to use a Mnenomic device. The two best devices for taxonomy are either an Acronym or an Acrostic. Please see this link OR ask instructor if you need help on this! Examples of Mnemonic devices What is your Mnemonic device for the following list (in this order)? Domain Kingdom Phylum Class Order Family Genus Speciesarrow_forwardA phylogenetic tree represents... a hypothesis about evolutionary relationships a branch point for species Binomial nomenclature Relationship between sister taxa Breakdown between large groups like kingdoms and small groups like speciesarrow_forward
- Which of the following statements is correct about the hierarchy of the taxonomic system currently used to classify organisms? Many different families of organisms belong to the same order. Many different orders of organisms belong to the same species. Many different classes of organisms belong to the same genus. Many different kingdoms of organisms belong to the same phylum.arrow_forwardWith the given name/s or situation, identify the appropriate rule or principle that must be or was considered. Choices: Principle of binomial nomenclature, principle of priority, principle of coordination, principle of the first reviser, principle of homonymy, principle of typification When Rattus as a genus name was established, its species name, Rattus norvegicus was also automatically established. Noctua Linnæus, 1758 (Lepidoptera) and Noctua Gmelin (Sauropsida) Limax maculatus was established in 1837 by Nunneley. However, it was found that Wiktor has already established Limax maximus (Gastropoda) in 1758. Since L. maximus was the senior synonym, it takes precedence over L. maculatus and it was used for the species. The species name of giraffe is Giraffa camelopardalis.arrow_forwardYou are working in the Department of Environment and Natural Resources (DENR) as a junior scientist. You have discovered new species of flora in Palawan tropical forest. How do you properly write the scientific name using binomial nomenclature of the new species? Elaborate your answer.arrow_forward
- Using the taxonomic categories (domain, kingdom, ...etc), compare the taxonomic classification of humans and pigs. Compare and contrast on each level and describe the similarities or differences at each level using the table below. Similarity/Difference Domain Kingdom Phylum Class Order Family Genus Speciesarrow_forwardWhich of the following sequence shows the correct hierarchy of taxonomic levels from least specific to most specific? Group of answer choices Species, Order, Kingdom, Family, Genus, Phylum, Class, Domain Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species Species, Genus, Family, Order, Class, Phylum, Domain, Kingdom Domain, Kingdom, Class, Phylum, Order, Family, Genus, Speciesarrow_forwardwhat notion is common to the definitions of morphological, biological and phylogenetic species conceptarrow_forward
- Of all taxonomic categories, only species has an objective definition. What is it?arrow_forwardWhich species on the chart (A,B,C,D,E,F,) is the common ancestorarrow_forwardDirections: For the following organisms below, you are to sort them into at least 4 different groupings. There must be at least 2 organisms in a grouping. You may place them into columns (in a chart of some sort) or simply Number or your groups and list the organism that are included. ALSO, you must include a written description (at least 2 sentences) describing the characteristics of EACH GROUP that apply to all organisms within that group. Hint** A quick google search, or image search may provide you the visual data you need to categorize the organisms. Sponges (Porifera) Cnidarians (Cnidaria) Comb jellies (Ctenophora) Flatworms (Platyhelminthes) Ribbon worms (Nemertea) Nematodes (Nematoda) Arrow worms (Chaetognatha) Segmented worms (Annelida) Sipunculans (Sipuncula) Molluscs (Mollusca) Arthropods (Arthropoda) Bryozoans (Bryozoa) Phoronids (Phoronida) Lamp shells (Brachiopoda) Echinoderms (Echinodermata) Hemichordates (Hemichordata) Chordates (Chordata)arrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning