Feather star is a class of echinoderms (classified in the phylum Echinodermata‚ class Crinoidea) that are attached to sea bottom by a stalk root like branches. In adult stage they break away from stalk and move freely. Feather stars have ambulacra systems that extend into the branched arms on the crown. They are most of feather stars are found in shallow‚ warm waters. Scientific classification Kingdom: Animalia Phylum: Echinodermata Subphylum: Crinozoa Class: Crinoidea Nervous
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Virtual Systematics Lab: Introduction to Systematics Worksheet Learning Goal: To learn how biologists classify species based on their evolutionary relationships. Prerequisite Knowledge: Before beginning this lab‚ you should be familiar with these concepts: why biologists today use the three-domain system of classification how evolutionary trees depict biologists’ understandings about the evolutionary relationships among groups of organisms Introduction: Almost every place on Earth‚ from the surface
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the taxonomic levels: A) class and order B) genus and species C) kingdom and phylum D) order and phylum 2) Select the smallest‚ least inclusive taxonomic level among the following choices: A) class B) genus C) order D) family 3) Select the largest‚ most inclusive taxonomic level among the following choices: A) class B) order C) domain D) phylum 4) Each is a general characteristic of life EXCEPT: A) the ability to respond
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are clear to reader Division 1. As you break something into parts‚ make it clear to the reader where one part begins and another ends 2. Be consistent in handling point of view Ex. In Botany‚ plants are broken down accordingly” Kingdom Phylum Class Order Family Genus Species The Division/Classification essay utilizes what was learned with comparison/contrast. Again‚ division/classification deals with how the essay is structured. Following the following formula
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Earthworms are part of Phylum Annelida‚ Class Oligochaeta. They are classified in this phylum because their bodies are segmented and separated by an internal wall called septa. Each segment may or may not be different from the other depending on its function. Earthworms also classify with this phylum because it has a true coelom lined with a mesoderm and contain complex organ systems (Miller and Levine 694). Earthworms survive by feeding‚ circulating‚ respirating‚ excreting‚ reacting‚ moving‚ and
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decomposes‚ but the silica cell wall still remains after they die. After decomposing it builds up to make diatomaceous earth‚ which has many uses. It can be used for filters‚ insulation‚ abrasives‚ glazes and insecticides. Spirogyra is apart of the phylum Charophyta and is a plant-like autotroph because it is part of green algae. Spirogyra participates in sexual reproduction through a process called isogamy. Isogamy is the sexual reproduction of similar gametes. These gametes can be male or female
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Phylum Mollusca Unit 4 Mollusk Introduction Phylum Mollusca Molluscus = soft Soft-bodied animals that usually have an internal or external shell. Includes snails‚ slugs‚ clams‚ squids‚ and octopi. True coelom Complex‚ interrelated organ systems Body Plan The body plan of most mollusks have 4 main parts: foot 2. mantle 3. shell 4. visceral mass 1. Foot: muscular; may be used for crawling‚ burrowing‚ or tentacles for capturing prey Mantle: thin tissue layer
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significance – beneficial and detrimental aspects of insects (to man) Definition of “pest” – difference between key‚ secondary‚ and sporadic pests General characteristics of Phylum Arthropoda Characteristics of Class Insecta Phylogeny and Systematics of the Arthropods Major distinguishing characteristics of members of Phylum Arthropoda Major distinguishing characteristics of Class Insecta Classification of Biological Organisms Difference(s) between conventional taxonomy and systematics
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Lab 4: Fungi Non-filamentous forms — Single-celled Yeasts Do an Internet search for a microscopic image of baker’s yeast‚ Saccharomyces cerevisiae (Ascomycota). Answer the following questions: 1. Do the yeast cells have a definite shape or is there considerable variation? Yeast cells seem to vary in shape‚ some look to be more oval and round‚ although. some slides did show pear and cylinder shapes. 2. Can you detect any subcellular structure? I cannot detect a clearly visible
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its meal. Historically‚ the hydrozoans have been divided into a number of orders‚ according to the way they grow and reproduce. (4) “Hydrozoans or “water animals” belong to the phylum Cnidaria. Cnidaria‚ which means “stinging thread” contain over 10‚000 species‚ 3200 of them belonging to class Hydrozoa. This phylum includes things such as Sea Anemones‚ Jellyfish‚ and Corals to sum it up. They are similar in that they possess radial symmetry‚ and all possess nematocysts that sting‚ which is mostly
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