1. Compare and contrast an Acanthocephalan and a Rotifer by providing 5 points of comparison. Point of comparison Rotifer Acanthocephalan 1. 2. 3. 4. 5. 2. What structures are found in Acanthocephalans which allows them to perform its endoparasitic life? Explain
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1. Compare and contrast an Acanthocephalan and a Rotifer by providing 5 points of comparison.
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2. What structures are found in Acanthocephalans which allows them to perform its endoparasitic life? Explain
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- Label the parts that are visible of these rotifers and acanthocephalans: 1. Rotifer from class Bdelloidea 2. Rotifer from class MonogonontaTaxonomic Key to Worms 1. a. worm has divided body parts (segmented) b. worm is not divided (unsegmented)... (Go to 3.) (Go to 2.) Acanthocephala 2. a. worm has spine-covered head b. worm does not have spiny projections, body is long and round .... Ascaris 3. a. worm does not have spines, has saddle-like portion b. no saddle portion, has spines Lumbricus Nais Worm 2 belongs to which category? pantho cenhla תוונ(ו.Ascaris Cross Section What are the functions of the structures in the Ascaris Cross Section? Compare the tissue structure of Ascaris to the Earthworm Cross Section? For the structures talk about the cell layers, nervous system, presence of body cavity, muscular system, excretory system, digestive system, reproductive system, and circulatory system.
- All arthropods 1. Undergo complete metamorphosis 2. Have jointed appendages 3. Molt 4. Have segmented bodies 5. Have an exoskeleton (1,2 and 4/ 3 and 5/ 2,3,4 and 5/ 1,4 and 5)?Which of the following features does not distinguish humans as a member of phylum Chordata? Human embryos undergo indeterminate cleavage A spinal cord runs along an adult human’s dorsal side Human embryos exhibit pharyngeal arches and gill slits, The human coccyx forms from an embryonic tail.Which of the following is not true of Acanthostega? It was aquatic It had gills It had four limbs It laid shelled eggs.
- How does segmentation enhance annelid locomotion? Segmentation creates repeating body structures so the entire organism functions in synchrony Segmentation allows specialization of different body regions Neural segmentation allows annelids to localize sensations Muscle contractions can be localized to specific regions of the body to coordinate movement.For each of the following classes of Arthropods, identify a feature unique to the class and at least 2 organisms that belong to the class: Insecta Crustacea Chelicerata Diplopoda 2. State the function of the following parts of the genus Romalea (grasshopper): antenna, tympanum, spiracles, ovipositor (female), gastric caeca, malphigian tubules, tracheae, air sacs .Differentiate the following according to their anatomical characteristics. Give at least five differentiation. a) Actinopterygii and Sarcopterygii
- 1. Cite 5 characteristics of sponges: 2. Which characteristics are unique to ctenophores? 3. Cnidarians are diploblastic, possessing an ectoderm and endoderm. Name the gelatinous nonliving material found between these two tissues. What cells are found within this gelatinous tissue? List the functions of these cells. 4. Polyp body consists of a tubular sessile body. True or false? 5. Define radial and bilateral symmetry, and protostomes and deuterostomes: 6. The presence of two different body forms, or dimorphism, is seen in the phylum Cnidaria. The form resembles an "upside-down cup" with tentacles, and the body form consists of a tubular sessile body. Hydra is an example of the body form, and a jellyfish is an example of the pody form.true/false 1. Siphonaptera has a laterally flattened body. 2. Sawflies have crochets on their prolegs. 3. Spruce Beetle (Dendroctonus rufipennis) is generally attracted to weakened or recently dead trees, and carries blue stain fungi. 4. Geometridae larvae have only 2 or 3 pairs of prolegs.Spicules are formed by Scleroblasts Silicoblasts Scleroblasts Calcoblasts Miracidium is a larval stage in the development of… Taenia solium Echinococcurs granulosus Ascaris lumbricoides Fasciola hepatica Hydrozoans are classified under cnidaria because of the presence of… Tentacles Cnidoblasts Hypostome Interstitial cells