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7th. Ch. 11 Chordates

Total questions: 36

Worksheet time: 29mins

Name
Class
Date
1.

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

2.

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

3.
All chordates are vertebrates.
a)
True
b)
False
4.
Lampreys and hagfish are
a)
Jawless fish
b)
Cartilaginous fish
c)
Bony fish
5.
Which of the following describes a reptile egg?
a)
Soft and leathery
b)
Hard with microscopic holes
c)
Soft and smooth
d)
Hard, made of calcium carbonate
6.
Which is NOT a characteristic of a reptile?
a)
Warm Blooded
b)
Scaly skin
c)
Has lungs
d)
lays leathery eggs
7.
What class of  the Chordate phylum do birds belong to?
a)
Vertebrata
b)
Chordata
c)
Aves
d)
Urochordata
8.
What single characteristic is specific to only Aves?
a)
beaks
b)
claws
c)
nests
d)
feathers
9.
A birds nearly hollow bones help it to
a)
store extra oxygen
b)
deliver oxygen to its cells
c)
be lightweight in the air
d)
defend itself against predators
10.

What usually covers a mammals skin?

a)

Hair

b)

Fur

c)

Scales

d)

Slime

11.

What do all mammals drink when they are young? It is also produced in the mammary glands of female mammals.

a)

water

b)

liquids

c)

milk

d)

soda

12.

A monotreme............

a)

Young develops in a placenta

b)

Lays eggs

c)

Young develops in a pouch

13.

A marsupial........

a)

Young develops in a placenta

b)

Lays eggs

c)

Young develops in a pouch

14.

A placental..........

a)

Lays eggs

b)

Young develops in a pouch

c)

Young develops in a saclike organ or placenta.

15.
Which of the following is a characteristic of vertebrates?
a)
a skull and backbone consisting of vertebrae
b)
a skeleton made of bone and four legs
c)
a backbone consisting of vertebrae and a jaw
d)
four legs and a jaw
16.
Which of the following is/are characteristics of reptiles?
a)
scales
b)
amniotic eggs
c)
waterproof skin
d)
all choices are correct
17.
Which of the following animals are ectothermic?
a)
frogs
b)
alligators
c)
turtles
d)
all choices are correct
18.
Which of the following statements about mammals is FALSE?
a)
Some mammals lay eggs.
b)
Mammals have mammary glands.
c)
Mammals have hair.
d)
Mammals are ectothermic.
19.
Which of these MUST return to water to reproduce?
a)
Amphibians
b)
Reptiles
c)
Birds
d)
Mammals
20.
Identify the class.
a)
Reptile
b)
Fish
c)
Mammal
d)
Amphibian
21.
What does the term ectothermic mean?
a)
The temperature of the organism is regulated by the organism.
b)
The temperature of the organism is regulated by the environment.
c)
The temperature of the organism stays constant.
22.

A snake is a....

a)

Fish

b)

Amphibian

c)

Reptile

d)

Both Fish & Reptiles

23.

I breathe with lungs, lay eggs, and am endothermic (warm-blooded). What am I?

a)

birds

b)

fish

c)

mammals

d)

amphibians

24.
Fishes take in oxygen through their
a)
fins.
b)
gills.
c)
scales.
d)
vertebrae.
25.

Sharks, skates, and rays are ____________ fish.

a)

cartilaginous

b)

jawless

c)

bony

d)

warm blooded

26.

A Turtle is a...

a)

Fish

b)

Amphibian

c)

Reptile

d)

Both Reptiles & Amphibians

27.
Which group of mammals give birth to immature young that continue to develop in the mother's pouch?
a)
monotremes
b)
marsupials
c)
mammals
d)
none of these
28.
Which of the following represents invertebrate chordates?
a)
lancelet
b)
lampreys
c)
snakes
d)
sharks
29.
This groups starts as jelly-like eggs in water, but moves to land as they develop lungs.
a)
fish
b)
amphibians
c)
reptile
d)
mammal
30.
This group has bodies covered with scales, breathes with lungs, and lives on land (mostly)
a)
reptile
b)
mammal
c)
bird
d)
fish
31.
This group breathes with gills all its life and has paired fins.
a)
reptile
b)
fish
c)
bird
d)
amphibians
32.
This group can be jaw-less, cartilaginous, or bony.
a)
amphibian
b)
reptile
c)
fish
d)
bird
33.
This group feeds milk to its young.
a)
birds
b)
mammals
c)
fish
d)
reptile
34.
Frogs and salamanders are in this group.
a)
fish
b)
reptile
c)
amphibians
d)
bird
35.
An animal that keeps a constant (steady) body temperature is
a)
endothermic.
b)
ectothermic.
c)
cold blooded
36.

In placentals the time between fertilization to birth is called the ____ period.

a)

gestation

b)

estivation

c)

placental

d)

monotreme

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