Meromenia Tonicella Antalis chambered heart spatulate foot Xpreoral tentacles Pectinella bivalve shell periostracum Amusium Limax dorsoventrally elongated body Sepia a) What is a shared derived character for Pectinella and Amusium? b) What is a shared ancestral character for Pectinella and Amusium?
Meromenia Tonicella Antalis chambered heart spatulate foot Xpreoral tentacles Pectinella bivalve shell periostracum Amusium Limax dorsoventrally elongated body Sepia a) What is a shared derived character for Pectinella and Amusium? b) What is a shared ancestral character for Pectinella and Amusium?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Answer a-d
c.) true or false only meromenia have a chambered heart
d.) a dorsobentral elongated body is an ancestral character for limax and sepia
Expert Solution
Step 1
To show the relationship between two species, a cladogram is used. Cladogram looks like a tree and is based on observable physical characteristics. The trees in cladogram have branches which connect with the common ancestry. There are new traits present in each branch which are called as derived characteristics.
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