Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 27, Problem 8RQ
Which of the following is not possible?
- radially symmetrical diploblast
- diploblastic eucoelomate
- protostomic coelomate
- bilaterally symmetrical deuterostome
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Which of the following does NOT occur?
radially symmetrical diploblast
diploblastic eucoelomate
protostomic coelomate
bilaterally symmetrical deuterostome
Which of the following is not possible? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostome
Which of the following has indeterminate development?
Echinodermata
Nematoda
Arthropoda
Platyhelminthes
Chapter 27 Solutions
Biology 2e
Ch. 27 - Figure 27.5 If a Hox 13 gene in a mouse was...Ch. 27 - Figure 27.6 Which of the following statements is...Ch. 27 - Figure 27.9 Which of the following statements...Ch. 27 - Which of the following is not a feature common to...Ch. 27 - During embryonic development, unique cell layers...Ch. 27 - Which of the following phenotypes would most...Ch. 27 - Which of the following organisms is most likely to...Ch. 27 - Which of the following is not possible? radially...Ch. 27 - An animal whose development is marked by radial...Ch. 27 - Consulting the modern phylogenetic tree of...
Ch. 27 - Which of the following is thought to be the most...Ch. 27 - As with the emergence of the Acoelomorpha phylum,...Ch. 27 - Which of the following periods is the earliest...Ch. 27 - What type of data is primarily used to determine...Ch. 27 - The time between 542-488 million years ago marks...Ch. 27 - Until recent discoveries suggested otherwise,...Ch. 27 - Plant life first appeared on land during which of...Ch. 27 - Approximately how many mass extinction events...Ch. 27 - Why might the evolution of specialized tissues be...Ch. 27 - Describe and give examples of how humans display...Ch. 27 - How have Hox genes contributed to the diversity of...Ch. 27 - Using the following terms, explain what...Ch. 27 - Explain some of the advantages brought about...Ch. 27 - Describe at least two major changes to the animal...Ch. 27 - How is it that morphological data alone might lead...Ch. 27 - Briefly describe at least two theories that...Ch. 27 - How is it that most if not all, of the extant...
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- Figure 27.6 Which of the following statements is false? Eumetazoans have specialized tissues and parazoans don’t. Lophotrochozoa and Ecdysozoa are both Bilataria. Acoela and Cnidaria both possess radial symmetry. Arthropods are more closely related to nematodes than they are to annelids.arrow_forwardAn animal whose development is marked by radial cleavage and enterocoely is. a deuterostome an annelid or mollusk either an acoelomate or eucoelomate none of the abovearrow_forwardYou are trying to identify a living organism which you are observing closely. Which one of the following would convince you that the organism is acoelomate? It responds to food by moving toward it. It is triploblastic. It has bilateral symmetry. It possesses sensory structures at its anterior end. Muscular activity of its digestive system distorts the body wall. The flatworms have a true coelom a pseudocoelom radial symmetry tissues derived from the three basic germ layers (i.e. they are triploblastic) need help with both questions for my HW please thank you!arrow_forward
- Which of the following is an example of an animal that has true tissues, has a coelom, is triploblastic, and is a Deuterstome? Question 8 options: a) Echinodermata and Chordata b) Cnidaria c) Ctenophora d) Placozoaarrow_forwardOligochaetes have well-developed heads chaetae for locomotion lungs for respiration a muscular foot a radula Which one of the following animals has an open circulatory system? squid earthworm mussel octopus polychaete please help with these two questionsarrow_forwardTriploblastic animals that lacks a through-gut and coelomarrow_forward
- Which of the following is not a characteristic of all animals? Answers: They are multicellular eukaryotes. They ingest and digest food. They are mobile at some point in their life. They reproduce sexually. They have a coelom. Please explain which one is correct.arrow_forwardAn unidentified animal is noted to possess the following characteristics: triploblastic eucoelomate body a cuticle that is shed via ecdysis To which of the following phyla does this organism belong? Group of answer choices A. Echinodermata B. Annelida C. Arthropoda D. Nematodaarrow_forwardName one invertebrate animal with both exo and endo,-skeletonarrow_forward
- Which of the following animal groups is triploblastic, has deuterostome development, and has a digestive system, a nervous system, and an excretory system, but does not have a vertebral column? the acoelomate flatworms (like the planaria) the cephalochordates (like the lancelet) the poriferans (like the calcareous sponges) the coelenterates (like the jellyfish) the agnathan fishes (like the sea lamprey)arrow_forwardAristotle classified all large, mobile, unshelled aquatic animals without a vertebral column as: the malacostraca the zoophytes the birds the malacia the ostracodermsarrow_forwardCoelomates have an enclosed coelom completely lined with mesodermally derived tissue. Accelomates have an enclosed coelom partially lined with mesodermally derived tissue. Pseudocoelomates have no enclosed coelom. true or falsearrow_forward
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