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... mesoderm coelom cavity endoderm ...
Lesson Overview
Lesson Overview

... homeostasis is the most important function of all body systems. For example, reptiles, birds, and mammals cannot excrete salt. Those that spend time hunting or feeding in salt water, such as the marine iguana, have adaptations that allow them to remove salt from their bodies. Marine iguanas maintain ...
Worm Jeopardy - southbutterfield
Worm Jeopardy - southbutterfield

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Cp 2 part 2 STUDY GUIDE

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Chapter 29 – Invertebrates

... There are more known species of arthropods than all other phyla combined. Chelicerates, arthropods with pincer or fanglike feeding appendages, include class Arachnida (spiders, ticks, scorpions, and mites). A traditional classification scheme groups the insects (class Insecta), centipedes (class Chi ...
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lecture notes ch32 Intro Animal Evolution

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Answers to Mastering Concepts Questions

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Lecture #14 Date - Biology Junction

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...  Sea Cucumbers live on the _________________________________. They don’t have spines, but have a very tough, leathery skin. They have a mouth at one end and an anus at the other end. What do sea cucumbers do when they sense danger? ___________________________________________________________________ ...
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...  Diversity in arthropods-what are the largest classes of arthropods?  What are the characteristics of insects?  To what segment are the legs and wings attached in an insect?  What structures do insects use for gas exchange?  In crayfish, what are their gills attached to? Why is this beneficial? ...
Unit 2 Study Guide - Madison County Schools
Unit 2 Study Guide - Madison County Schools

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... the communication mechanism in some bees known as the bee dance, through which one bee tells others information about the location of flower fields and other sources of nectar. ...
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Crustacea

... Insets have _____________ legs attached to the chest. ...
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... 1. Name two classes of Chelicerata and give one example. 2. There are three types of modified legs in this group. What are their names and how are they used? 3. True or false Xiphosura is a marine class Horseshoe crab is a true crab which belongs to class of Xiphosura Xiphosura use book lungs to bre ...
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... Which animal does NOT have external fertilization? • A. clams • B. humans • C. sponges • D. insects Hint: Decide what the question IS asking. It IS asking about the ...
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Studyguide for Exam 2 Spring 2012 Chapter 7 Marine Animals

... Which phyla are mainly marine? Which phyla are mainly in water? Which phyla have some success on land? Burgess shale fossils Mudslide on the british Columbia continental shelf preserved soft bodied invertebrates from right after the Cambrian era •Many body plans are now extinct •Only one chordate fo ...
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M5L5 Phylum Annelida Segmented Worms

... with movement as well. Some polychaetes are tube worms. These tubes will be burrowed in the mud and the worms have reduced parapodia. Some have tentacles which allow them to filter feed of particles in the water. In annelids, blood is moved throughout the body entirely within blood vessels. Therefor ...
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Introduction to animals

... echinoderms (starfish) have fluid-filled internal cavities giving them support • Called hydrostatic skeletons ...
Annelid Test Zoology B
Annelid Test Zoology B

... Short Answer Please answer the following questions in complete sentences. 33. What main function AND what body system does the clitellum serve? The function of the clitellum is mucous secretion during copulation and cocoon formation after copulation. ...
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Invertebrate



Invertebrates are animals that neither possess nor develop a vertebrae (vertebral column) , derived from the notochord. This includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include insects, crabs, lobsters and their kin, snails, clams, octopuses and their kin, starfish, sea-urchins and their kin, and worms.The majority of animal species are invertebrates. One estimate puts the figure at 97%. Many invertebrate taxa have a greater number and variety of species than the entire subphylum of Vertebrata.Some of the so-called invertebrates, such as the Chaetognatha, Hemichordata, Tunicata and Cephalochordata are more closely related to the vertebrates than to other invertebrates. This makes the term ""invertebrate"" almost meaningless for taxonomic purposes.
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