Honors Biology
March 20,2014
Module 13 - Part 2
Phylum Chordata
Vertebrates
Welcome 4-H Caterpillars
Quiz 23
Write the 4-H Pledge
Phylum Chordata (vertebrates) have so much diversity that
it must be split into three subphyla.
Match the following:
1. __C__contains those creatures that have a notochord
through larva stage but then the notochord actually
disappears in the adult stage.
2. __B__holds those organisms that have notochords
throughout their entire lives.
3. __A__is made up of those vertebrates that have a
notochord during their early development, but it turns
into a true backbone before the animals are born or
hatched. This group is usually referred to as
“vertebrates.”
A. Subphylum Vertebrata
B. Subphylum Cephalochordata
C. Subphylum Urochordata
Phylum Chordata (vertebrates) have so much
diversity that it must be split into three subphyla.
Match the following:
1. ____contains those creatures that have a
notochord through larva stage but then the
notochord actually disappears in the adult stage.
2. ____holds those organisms that have
notochords throughout their entire lives.
3. ____is made up of those vertebrates that have a
notochord during their early development, but it
turns into a true backbone before the animals
are born or hatched. This group is usually
referred to as “vertebrates.”
A. Subphylum Urochordata
B. Subphylum Cephalochordata
C. Subphylum Urochordata
Virtual Frog Dissection
Grass Frog: Part 1 External Dissection
http://youtu.be/u-LqS5AVRio
Grass Frog – Internal Dissection
http://youtu.be/bOJyhk4QZvc
Major Internal Structures
Figure 13.10
Circulation of Blood
http://youtu.be/PgI80Ue-AMo
Basic Circulatory System
Figure 13.11
Figure 13.11
How many chambers does a fish have?
Atrium: A heart chamber that receives
blood from veins that is carried back to the
heart.
Ventricle: A heart chamber from which
Oxygenated blood is pumped out.
From the heart chamber from which Oxygenated
blood is pumped out  through the ventral aorta
 Afferent brachial  capillaries in the gills
where the blood releases CO2 --> water pours
over the gills and Oxygen is then received into
the blood. It leaves the gills through efferent
brachial arteries. These arteries dump blood
into the dorsal aorta. Some of the blood goes to
the brain and other cells in the head supplying
them with nutrients and oxygen. Now the blood
is oxygen poor and is carried back to the hear in
the anterior cardinal vein.
Circulatory System
• http://youtu.be/NJzJKvkWWDc
Circulatory system
http://youtu.be/PgI80Ue-AMo
Study Guide Questions
Page 426
http://quizlet.com/2094397/apologia-biology2nd-ed-module-13-flash-cards/
Frog Dissection
Homework
Read Module 14 pages 429-442;
Finish Module 13 OYO and Study Guide;
Take Module 13 Test
March 27: Notebook check through
Module 13
Quiz: Heart Anatomy- diagram the
circulation of blood through the hear