10/5/2016 1 Diversity of Life: Animal Kingdom Lessons 4 & 5 Vertebrates 7 th Grade Science Class Notes & Activities Lesson 4: Vertebrates - Read pages 155-157 to complete this section. (A) What phylum includes vertebrates, or animals with a backbone? (B) At some point in their lives, all of these have: 1 - A ________________, which is a flexible rod that supports its back. 2 - A nerve cord, such as our __________ cord, to connect the brain to nerves in the rest of the body 3 - Have _________ pouches, which become gills in some animals or disappear before birth (C) Most chordates have a backbone, or ________, and is made up of many small bones called _________________. (D) An ______________'s body temperature changes with temperature changes in its environment, while an ______________ is able to produce and regulate its own temperature. NOTOCHORD SPINAL THROAT SPINE VERTEBRAE ECOTHERM ENDOTHERM CHORDATES COLD-BLOODED (ADD TO NOTES) WARM-BLOODED (ADD TO NOTES) The Shape of Life: Chordates Glue the worksheet on page 14 FAF Left. Complete the worksheet as you watch the video during class. Your Turn - Which words will best fill in the blanks? Backbone Backwards Chimpanzees Dinosaurs Egg Fish Gill slits Humans King Cobra Mammals Metabolism Monitor Lizard Muscles Nerve Notochord Salp Skulls Speak Tunicates Venom Vertebrate Write #5 – Do on your own as its not in the list! ANSWER KEY – CORRECT ANY THAT YOU MISSED! 1. Describe each part of the Amphioxus. a) The NERVE cord moves the nerve messages through the body b) It has GILL SLITS to help it obtain oxygen under water. c) It uses its segmented MUSCLES to move. d) It has a NOTOCHORD that gives it shape and is the precursor to the backbone in humans. 2. What is another term for a Chordate, or an animal with a backbone? VERTEBRATE 3. What do we humans have in our skeleton that is similar to a notochord? BACKBONE 4. Which has more genes: Amphioxus or humans? HUMANS 5. Why was the addition of more genes so important to the evolution of Chordates? IT ALLOWED VERTEBRATES TO DEVELOP SPECIALIZED STRUCTURES. 6. FISH were the first animals with bony and flexible jaws. They also had SKULLS to protect the soft brain. 7. Chordates that filter (or siphon) water for food are called TUNICATES, while the SALP strings together a long chain of pearl-like strands. 8. The MONITOR LIZARD is one of the first Chordates that flourished on land with their strong limbs and laid EGGS for reproduction.
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10/5/2016
1
Diversity of Life:
Animal Kingdom
Lessons 4 & 5
Vertebrates
7th Grade Science Class Notes & Activities
Lesson 4: Vertebrates - Read pages 155-157 to complete this section.
(A) What phylum includes vertebrates, or animals with a backbone?
(B) At some point in their lives, all of these have:
1 - A ________________, which is a flexible rod that supports its back.
2 - A nerve cord, such as our __________ cord, to connect the
brain to nerves in the rest of the body
3 - Have _________ pouches, which become gills in some
animals or disappear before birth
(C) Most chordates have a backbone, or ________, and is made up of
many small bones called _________________.
(D) An ______________'s body temperature changes with temperature
changes in its environment, while an ______________ is able to produce
and regulate its own temperature.
NOTOCHORD
SPINAL
THROAT
SPINE
VERTEBRAE
ECOTHERM
ENDOTHERM
CHORDATES
COLD-BLOODED (ADD TO NOTES)
WARM-BLOODED (ADD TO NOTES)
The Shape of Life: Chordates
Glue the worksheet on page 14 FAF Left.
Complete the worksheet as you watch the video during class.
Your Turn - Which words will best fill in the
blanks?
Backbone Backwards Chimpanzees Dinosaurs Egg Fish Gill slits Humans
King Cobra Mammals Metabolism Monitor Lizard Muscles Nerve Notochord Salp
Skulls Speak Tunicates Venom Vertebrate Write
#5 – Do on your own as its not in the list!
ANSWER KEY – CORRECT ANY THAT YOU MISSED!
1. Describe each part of the Amphioxus.
a) The NERVE cord moves the nerve messages through the body
b) It has GILL SLITS to help it obtain oxygen under water.
c) It uses its segmented MUSCLES to move.
d) It has a NOTOCHORD that gives it shape and is the
precursor to the backbone in humans.
2. What is another term for a Chordate, or an animal with a
backbone? VERTEBRATE
3. What do we humans have in our skeleton that is similar to a
notochord? BACKBONE
4. Which has more genes: Amphioxus or humans? HUMANS
5. Why was the addition of more genes so important to the evolution
of Chordates? IT ALLOWED VERTEBRATES TO DEVELOP
SPECIALIZED STRUCTURES.
6. FISH were the first animals with bony and flexible jaws. They
also had SKULLS to protect the soft brain.
7. Chordates that filter (or siphon) water for food are called
TUNICATES, while the SALP strings together a long chain of
pearl-like strands.
8. The MONITOR LIZARD is one of the first Chordates that
flourished on land with their strong limbs and laid EGGS for