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WorksheetsChordates
Total questions: 10
Worksheet time: 5mins
What is a notochord?
A muscular structure at the end of a developing chordate.
A tube like structure near the brain
Supports the animal and extends along the upper part of its body
A spinal chord
What does a nerve chord become?
Muscle
Spinal chord
Pharyngeal Pouch
Notochord
What is a cartilage?
Backbone
Fingertips
Part of your muscel
A bone/or a flexible tissue
How long ago did vertebrates live?
420 million years ago
500 million years ago
620 thousand years ago
530 thousand years ago
What did invertebrate chordates use pharyngeal pouch for?
Growing
Filter feeding
To get to the spinal chord
To help develope
What is a vertebrae?
Part of your stomache
Supports the muscle and organs
Part of your bone that is attached to your tissue
Backbones that are joined by flexible cartilage and protects the spinal chord.
What is the function of the endoskeleton?
Protects the tissue and bone
Helps control the muscle
Controls the bone
Supports the organs and muscle
When did reptile fossils appear?
378 million years ago
350 million years ago
670 thousand years ago
700 thousand years ago
ONE characteristics of Echinoderms
Notochord
Spinal chord
Muscel
Bone
When did amphibian fossils appear?
420 million years ago
378 mya.
370 mya.
689 thousand years ago
