Characteristics Skull of an Oriental giant squirrel (genusRatufa) - note the classic sciuromorphousshape of the anterior zygomatic region. Squirrels are generally small animals‚ ranging in size from theAfrican pygmy squirrel at 7–10 cm (2.8–3.9 in) in length and just 10 g (0.35 oz) in weight‚ to the Alpine marmot which is 53–73 cm (21–29 in) long and weighs from 5 to 8 kg (11 to 18 lb). Squirrels typically have slender bodies with bushy tails and large eyes. Their fur is generally soft and silky
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Cnidarians Cnidaria is a phylum containing some 11‚000 species of simple animals found exclusively in aquatic‚ mostly marine‚ environments. Cnidarians get their name from cnidocytes‚ which are special cells that carry stinging organelles. The corals‚ which are important reefbuilders‚ belong here‚ as do the sea anemones‚ jellyfish‚ sea pens‚ sea pansies and sea wasps. The names Coelenterata and Coelentera were once applied to the group‚ but those names included the Ctenophores‚comb jellies
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PRACTICE TEST Answer the following questions on a separate sheet of paper. 1. Which of the following levels would contain members that are the most similar to one another (the least amount of variation among members)? a. class b. kingdom c. phylum d. family 2. Evolution is a very controversial idea among both scientists and nonscientists. a. true b. false 3. In what family are humans classified? a. hominidae b. chordata c. primates d. Homo 4. What is the role of fossils in supporting
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POIKILOTHERMOUS ANIMALS - cold blooded animals whose body temperature closely follows that of their environment. INVERTEBRATE INTEGUMENTS Protozoa- delicate cell membrane (Amoeba) Coelenterata- epidermis‚ single layer of cells (e.g. corals and Hydra) Annelida- epidermis contains non-cellular cuticle (e.g. earthworm) Platyhelminthes- epidermis contain contains resistant cuticle (e.g. liver fluke and tape worm.) Arthropoda- chitin (e.g. shrimp‚ crabs‚ lobster and insects) Mollusca- shell (clams‚
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UNIT I Diversity in the Living World CHAPTER 1 The Living World What is Living Diversity in the living world Taxonomic Categories Taxonomical Aids The living world is very wonderful. It contains wide range of life forms. 1.1 What is living – Living organisms are self-replicating‚ evolving and self-regulating interactive systems capable of responding to external stimuli. Living organisms exhibit following distinctive characteristics. All Living Organisms
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has two parts‚ the genus name (i.e. the ‘generic’ name) and the species name (i.e. the ‘specific’ name)‚ for example‚ Homo sapiens‚ the name of the human species. In traditional Linnaean taxonomy‚ the seven major taxonomic groupings are Kingdom‚ Phylum‚ Class‚ Order‚ Family‚ Genus‚
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Linnaeus’s hierarchical system of classification includes seven levels. They are—from smallest to largest—species‚ genus‚ family‚ order‚ class‚ phylum‚ and kingdom Family- group of genera that share many characteristics Order- group of similar families Class- group of similar orders Several different classes make up a phylum The kingdom is the largest and most inclusive of Linnaeus’s taxonomic categories. Linnaeus named two kingdoms‚ Animalia and Plantae Carolus
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your new answer with a cross . Classification 1 (a) Camels belong to the phylum Chordata. The drawing shows a dromedary camel that has the binomial name Camelus dromedaries. (i) Complete the sentence by putting a cross ( ) in the box next to your answer. The second part of the binomial name‚ dromedaries‚ refers to the (1) A class B genus C order D species (ii) State one feature that all members of the phylum Chordata have in common. (1) . . . . . . . . . . . . ...................
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live in water and have gills‚ scales and fins on their body. 2. Amphibians are born in the water. When they are born‚ they breath with gills like a fish but eventually they will grow up and develop lungs and can live on land. 3. Arthropods is a huge phylum of animals. It includes 11 classes: Merostomata‚ Pycnogonida‚ Arachnida‚ Remipedia‚ Cephalocarida‚ Branchiopoda‚ Maxillopoda‚ Malacostraca‚ Chilopoda‚ Diplopoda‚ and Insecta.
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Fall 2012 BISC 120Lg – M/W/F 10 A.M. section EXAM 3 Instructor: Dr. Karla Heidelberg PLEASE READ ALL THE INSTRUCTIONS CAREFULLY. 1.DO NOT start until instructed. 2.Make sure you have a total of 9 pages. Instructions for filling in the Blue Scantron Answer Sheet: 1. Enter your name in the NAME field (your last name first)‚ and fill in the appropriate bubbles. 2. Enter your USC STUDENT ID NUMBER in the field labeled IDENTIFICATION NUMBER‚ and fill in the appropriate bubbles
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