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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Transcribed Image Text:Done
Topic 15- Chordates
What are Chordates?
Learning Objectives: After completing this
section, students are expected to:
.Define Chordate
What five characteristics do
chordates possess?
What is the function (original & past)
of the major characteristics?
Do all chordates have to possess
these characteristics? Why/why not?
D)) Key terms to define include:
• Notochord
•Chordate
· Pharyngeal Slits
• Dorsal Nerve Cord
· Endostyle
• Post-anal Tail
Meet the Chordates!
The last remaining animal phylum,
Chordates, comprise the last common
ancestor of all animals that possess a
notochord and include all vertebrate
animals such as fish, amphibians, reptiles,
bird, and mammals. This phylum can at
least trace its origins back to the Cambrian
Explosion with the appearance of a small
critter know as Pikaia.
Bilateria Neghrano
Chordates (highlighted in green) are a branch of
deuterostome bilaterians that include all animals
with a backbone.
Your basic chordate will possess the
following 5 key traits (at least at some
point during its development)...
Transcribed Image Text:In the space below, please explain 3 of the 5 characteristics that diagnose a chordate
to someone who has not taken our class.
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