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Crayfish Dissection.pdf

Locate various external structures of a crayfish. Identify organs that make up the different systems of a crayfish. Compare the anatomy of a crayfish to that of other organisms. MATERIALS. Name. Class. Date. Crayfish Dissection. Skills Practice Lab. • dissecting tray. • felt-tip marker. • forceps. • gloves. • hand lens. • lab apron.

Crayfish Dissection.pdf

Crawfish Lesson Plan

Courtesy of the Louisiana Crawfish Promotion and Research Board and the Louisiana. Department of Agriculture ... Answer questions about the important characters, setting, and events of a story (ELA-. 1-E5). 11. ...... In this lab, you will observe the external structures of a crayfish and dissect it to study its internal structures ...


ARTHROPOD LABORATORY Phylum Arthropoda Subphylum

Cambarus sp. – freshwater crawfish for dissection ... Periplaneta americana – external and internal anatomy, dissection specimens. Order Isoptera ... ( millipedes). A simplified key to the classes of arthropods is given below. You should examine it carefully and use it to classify each of the specimens you look at in today's lab.



The crayfish is an extraordinary example of the arthropod characteristic ofjointed legs. The crayfish has twenty pairs of appendages that have been modified for specific functions. In this investigation you will locate and examine the main external structures and respiratory system of the crayfish. Name the phylum to which the ...

Crayfish Dissection Guide.pdf

Anatomy of a Shrimp/Crawfish

L. 18. 7, 8, 9). 11.03 Identify and describe the basic structures and external anatomy of crustaceans. (LA.910.1.6.1, 2, 3, ... Students will be able to identify key anatomical features of common crustacean species. 4. .... Ask the students to label and/or draw (if using lab notebooks) each step of the dissection and identify major ...


General Biology Lab II Laboratory 09: Arthropods Introduction

Arthropods, including insects, spiders, and crustaceans, are protostomial ecdysozoans. They are, perhaps, the most abundant and diverse group of animals on the planet. They have managed to occupy nearly every habitat, including freshwater, marine, terrestrial and aerial environments. They also include some.


Dissection Alternatives Lending Library

Includes a key guide identifying over 175 organs, including an illustration of the male frog reproductive system. Grades K-College. CD. BioLab Frog. Provides an in-depth dissection of the following systems: external mouth, digestive, circulatory , reproductive and skeletal. Four mini-labs provide an interactive, in-depth lab ...


Different aspects of reproduction strategies in crayfish: A review

structure of the benthic fauna in the freshwaters, demonstrating different ecological strategies and life spans ranging up to 20+ years. ... crayfish, including using eyestalk ablation or androgenic gland ablation under various lab conditions and hybridization ... Key-words: crustacea / parthenogenesis / intersex / hybridization.


crayfish parasite Psorospermium haeckeli

ABSTRACT Psorospemum haeckeli, a common parasite of the European noble crayfish Astacus ... of the spores were encapsulated by haemocytes and melanized. KEY WORDS: Psorospermium haeckeli . Parasite . Astacus astacus . Crayfish . Microscopic anatomy ... connective tissue between internal organs and mus-.


Lab 2

o Smith and Schenk (dissection manual) Chapters 1, 4, and 7 o Russell et al., CH 45. During lab. Today is the first graded weekly pre-lab quiz. • Discuss answers to Arthropod and. Annelid comparisons. • Part A: Use statistics and pooled class data from last week to determine if male and female crayfish differ in length.


Crawfish Folio For Pdfing

Although the crawfish and lobster look alike, they are only cousins. Crawfish need a freshwater environment, while saltwater is essential to the lobster. The crawfish is called a “decapod” because it has five pairs of legs, each with a specific purpose. Crawfish have gills like fish and yet they can spend an extended time out of ...


ganglion of the crayfish

cal theory that the telson derives from a 'postsegmental region.' Key words: Abdominal ganglion - Neuroanatomy - Nickel- filling - Silver impregnation - Procambarus clarkii. For students of invertebrate neuroethology, the terminal. ( sixth abdominal) ganglion of the crayfish has been one of the most attractive subjects among ...

crayfish 6th abdominal ganglion Anatomy.pdf

GENERAL BIOLOGY II (Biology 007) 5.00 units (UC:CSU) Section

General Biology II covers the principles of anatomy and physiology in plants and animals, in addition to microbiology ... numbers with your lab-mate so that if you are running late for an exam you can relay a message ... choice, fill in the blank, short answers and may include figures from my notes and from the text that you ...


Winiarskyj, Lesia, Ed. Alternatives To Dissection. Second Edition. Hu

The enclosed materials demonstrate that alternatives to dissection and to invasive experiments in the classroom can be sup- ported on both .... Through in- class observation, students can examine the external anatomy, behavior, and liv- .... answers from which to choose (open book) to labeling without a list (closed book).


Lab 1: Animal Form and Function

scheme. • Parts B: Dissect an earthworm (Phylum Annelida). • Part C: Dissect a crayfish (Phylum Arthropoda). • Part D: Compare the Phyla Annelida and Arthropoda. Assignments (Due at the beginning of next week's lab). • Worksheet 1: Animal Form and Function. • Answer to assigned question from Part D ( maximum 1.


Action research implemented to improve Zoology laboratory activities

experimental design and in the construction of dichotomous keys implemented in .... while in lab. In each case, activities were altered or added to improve the level of intellectual challenge, as determined by the increased level in Bloom's ..... features for the grasshopper, spider, and crayfish, and 5 internal structures of a.


Detmer dichotomous key template

Lesson Title: Constructing a Dichotomous Key and Exploring Its Relationship to. Evolutionary Patterns ... Type of Lesson: STEM. Objectives: The objectives of this lab are to learn to use a dichotomous key, identify .... make a more accurate tree ( comparing trees with more features, internal anatomy in addition to external ...


Muscle Receptor Organs in the Crayfish Abdomen: A Student

In this laboratory experiment, one will dissect a crayfish abdomen and learn the associated anatomy and physiology of the MRO. ... (The Faraday cage is used to block external electric fields that could interfere with the electrical recording). 2. ... Connect the AC/ DC Differential Amplifier (amplifier) to the Power Lab 26T.


Field Guide to the Crayfish of the White River Watershed

Crayfish identification keys for larger watersheds often require close examination of small reproductive parts of Form I adult males in order to clearly identify each species. But since the White River watershed has so few species, each with relatively distinctive markings, we can generally use their external features to correctly ...


Fate of glair glands and oocytes in unmated crayfish: a comparison

Apr 8, 2016 ... Key words: freshwater crayfish, glair glands, spawning, mating, Procambarus fallax,. Procambarus virginalis. Introduction ... forms a tent like structure on the underside of the thorax and pleon (Andrews 1904; Vogt. 2016). Within this gelatinous ... external sex determination. In the following five months they ...