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 7RQ
Which of the following organisms is most likely to be a diploblast?
- sea star
- shrimp
- jellyfish
- insect
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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 27.9 Which of the following statements about diploblasts and triploblasts is false? Animals that display radial symmetry are diploblasts. Animals that display bilateral symmetry are triploblasts. The endoderm gives rise to the lining of the digestive tract and the respiratory tract. The mesoderm gives rise to the central nervous system.arrow_forwardCubozoans are polyps medusoids polymorphs spongesarrow_forwardWhich of the following does not occur? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostomearrow_forward
- Which of the following is not possible? radially symmetrical diploblast diploblastic eucoelomate protostomic coelomate bilaterally symmetrical deuterostomearrow_forwardWhich of the following has indeterminate development? Echinodermata Nematoda Arthropoda Platyhelminthesarrow_forwardWhat animal is this? nemertean polychaete tardigrade arrow worm phoronidarrow_forward
- Oligochaetes 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_forwardA radula in a gastropod is a female reproductive structure A sharp, tooth like structure for killing prey a structure that aids in feeding a sense organ for detecting light Which choice correctly identifies the body plan of a Mollusc? radial symmetry bilateral symmetry asymmetry (no symmetry)arrow_forwardA radula in a gastropod is a female reproductive structure A sharp, tooth like structure for killing prey a structure that aids in feeding a sense organ for detecting light Which choice correctly identifies the body plan of a Mollusc? radial symmetry bilateral symmetry asymmetry (no symmetry) A characteristic present in members of the arthropod subgroup that includes spiders, but not present in other arthropod classes would be the presence of chelicerae. an open circulatory system. an exoskeleton. a cuticle. a cephalothorax.arrow_forward
- all of the following are eutherians. EXCEPT monkey wolf shrew platypus batarrow_forwardWhich of the following phyla or classes displays the greatest number of species: options: Mollusca Nematoda Annelida Insectaarrow_forwardWhich of the 4 characteristics of Phylum Chordata is visible on this organism? Pharyngeal slits Dorsal hollow nerve cord Notochord Post-anal tailarrow_forward
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