Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 28, Problem 17RQ
Crustaceans are
- ecdysozoans
- nematodes
- arachnids
- parazoans
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Chapter 28 Solutions
Biology 2e
Ch. 28 - Figure 28.3 Which of the following statements is...Ch. 28 - Figure 28.21 Which of the following statements...Ch. 28 - Figure 28.45 Which of the following statements...Ch. 28 - Mesohyl contains: a polysaccharide gel and dead...Ch. 28 - The large central opening in the parazoan body is...Ch. 28 - Most sponge body plans are slight variations on a...Ch. 28 - Cnidocytes are found in phylum Porifera phylum...Ch. 28 - Cubozoans are polyps medusoids polymorphs spongesCh. 28 - While collecting specimens, a marine biologist...Ch. 28 - Which group of fllatworms are primarily...
Ch. 28 - The rhynchocoel is a. circulatory system...Ch. 28 - Annelids have (a): pseudocoelom true coelom no...Ch. 28 - A mantle and mantle cavity are present in: phylum...Ch. 28 - How does segmentation enhance annelid locomotion?...Ch. 28 - The embryonic development in nematodes can have up...Ch. 28 - The nematode cuticle contains. glucose skin cells...Ch. 28 - Crustaceans are ecdysozoans nematodes arachnids...Ch. 28 - Flies are ___________ . chelicerates hexapods...Ch. 28 - Which of the following is not a key advantage...Ch. 28 - Echinoderms have. triangular symmetry radial...Ch. 28 - The circulatory fluid in echinoderms is blood...Ch. 28 - Which of the following features does not...Ch. 28 - The sister taxon of the Chordata is the. Mollusca...Ch. 28 - Describe the different cell types and their...Ch. 28 - Describe the feeding mechanism of sponges and...Ch. 28 - Explain the function of nematocysts in cnidarians.Ch. 28 - Compare the structural differences between...Ch. 28 - Compare the differences in sexual reproduction...Ch. 28 - How does the tapeworm body plan support widespread...Ch. 28 - Describe the morphology and anatomy of mollusks.Ch. 28 - What are the anatomical differences between...Ch. 28 - How does a change in the circulatory system...Ch. 28 - Enumerate features of Caenoihabditis elegans that...Ch. 28 - What are the different ways in which nematodes can...Ch. 28 - Why are tardigrades essential to recolonizing...Ch. 28 - Describe the various superclasses that phylum...Ch. 28 - Compare and contrast the segmentation seen in...Ch. 28 - How do terrestrial arthropods of the subphylum...Ch. 28 - Describe the different classes of echinoderms...
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- Cubozoans are______. a. polyps b. medusoids c. polymorphs d. spongesarrow_forwardCrustaceans are _____. a. ecdysozoans b. nematodes c. arachnids d. parazoansarrow_forwardOrganisms from this group have such complex eyes that they can probably form images Sclerospongia Cubozoa Hydrozoa Scyphozoa Placozoaarrow_forward
- Which phylum is characterized by a hard, flexible exoskeleton and multiple life cycles? Echinodermata O Mollusca O Chordata O Arthropodaarrow_forwardWhich group has pseodopods? euglenoids ciliates apicomplexa diatoms amoebas slime molds red algaearrow_forwardWhy are flatworms called acoelomatesarrow_forward
- Cnidarians may exhibit an “alternation of generations” in their entire life cycle. Describe the “alternation of generations” using the life cycle of a hydrozoan, Obelia.arrow_forwardPlease create a cladogram using this table with the information we research aboutarrow_forwardWhat type of flatworm is generally non-parasitic (i.e., free-living)? Turbellarians Trematodes Cestoda (tapeworms) Monogeneansarrow_forward
- These differ from the other classes of sponges in that their cells are syncytial (multinucleate and only a few cells or even one cell can cover the entire skeleton) Hexactinellida Calcerea Demospongia Homescleromorphaarrow_forwardCE Which of the following is a synapomorphy of the Anthozoa? Exoskeletons of calcium carbonate O Corals and sea anemones Absence of medusa stage Presence of planula larva stage Presence of cnidacarrow_forwardWhich group of flatworms are primarily external parasites of fish? a. monogeneans b. trematodes c. cestodes d. turbellariansarrow_forward
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