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Early Chordates

Total questions: 16

Worksheet time: 4hrs 0mins

Name
Class
Date
1.

Tunicates feed in which way?

a)

Herbivory

b)

Deposit feeding

c)

Filter feeding

d)

Hunting

2.
All chordates are vertebrates.
a)
True
b)
False
3.

Another name for Tunicates

a)

Urochordates

b)

Sea sponge

c)

Lancetes

d)

lancetfish

4.

Which is the Adult?

a)

Picture on the LEFT

b)

Picture on the RIGHT

5.

Do all chordates have all the characteristics their entire lives?

a)

YES

b)

NO

6.

What is Structre A?

a)

Pharynx

b)

Atrium

c)

Anus

d)

Stomach

7.

What is Structre B?

a)

Pharynx

b)

Atrium

c)

Anus

d)

Stomach

8.

What is Structre D?

a)

Pharynx

b)

Atrium

c)

Anus

d)

Stomach

9.

What is the flexible skeletal support rod?

a)

Dorsal Hollow Nerve Chord

b)

Notochord

c)

Pharyngeal slits

d)

Endoskeleton

10.

On which side of the body is the Hollow Nerve chord located?

a)

Ventral

b)

Anterior

c)

Posterior

d)

Dorsal

11.

Which structures do all chordates have at some point during their life time?

a)

Notochord, Hollow Nerve chord, Pharyngeal slits, Tail

b)

Notochord, Gill slits, Tail

c)

Hollow nerve chord, notochord, legs, wings

d)

Pharyngeal slits, Head, Thorax, Tail

12.

Which of the following chordates are also vertebrates?

a)

Fish, Amphibians, Lancelets

b)

Fish, Birds, Reptiles, Mammals

c)

Tunicates, Sea squirts, Lancelets

d)

Lampreys, Lancelets, Amphibians

13.

What is an internal skeleton?

a)

exoskeleton

b)

ectoskeleton

c)

endoskeleton

d)

enterskeleton

14.

Where are the pharyngeal slits located?

a)

abdomen

b)

Thorax

c)

Head

d)

Throat

15.

Which of the following represents invertebrate chordates?

a)

tunicates

b)

lampreys

c)

snakes

d)

sharks

16.
Fish-like marine animals usually found half buried in sand
a)
Respiration
b)
Lancelets
c)
Excretion
d)
Tunicates