Zoology Final Exam December 2023

Question 1

Cephalization:

Answer 1

Is characterized by the concentration of sensory organs in anterior end.

Question 2

An organism with a body cavity that is not complete is a:

Answer 2

Psuedocoelomate.

Question 3

Pseudocoelomates:

Answer 3

Must be very small or have body shapes with short distances between organs.

Question 4

Which of the following is not a member of the Phylum Mollusca?

Answer 4

Echinoderm.

Question 5

The evolution of the coelom was significant because:

Answer 5

It enabled the development of complex organ systems.

Question 6

A characteristic structure found in many mollusks is the radula, which is involved in:

Answer 6

Eating.

Question 7

The only cephalopod to retain it’s external shell is the:

Answer 7

Nautilus.

Question 8

Spiders, scorpions, and mites all belong to the subphylum:

Answer 8

Chelicerata.

Question 9

All of the following are Arthropods except for:

Answer 9

Clam worms.

Question 10

The exoskeleton of an insect:

Answer 10

Is moved by muscles that are attached to the inside of the exoskeleton.

Question 11

The exoskeleton of arthropods is made of a material called:

Answer 11

Chitin.

Question 12

In what ways are lobsters similar to spiders?

Answer 12

They both have jointed appendages.
They both have exoskeletons.
They both have segmented bodies.

Question 13

To grow larger, arthropods must molt and:

Answer 13

Grow a new exoskeleton.

Question 14

Spiders, and other arachnids, typically have:

Answer 14

Two body segments and eight legs.

Question 15

Mandibles on a true insect are attached to the:

Answer 15

Head.

Question 16

The posterior section of an arthropod that contains digestive and reproductive organs is called the:

Answer 16

Abdomen.

Question 17

All fish have a(n):

Answer 17

Internal skeleton.

Question 18

Generally, fishes obtain their oxygen through their:

Answer 18

Gills.

Question 19

The release of sperm and eggs near each other into the water occurs during:

Answer 19

Spawning.

Question 20

The changing of body shape, form, and function from infant to adult is known as:

Answer 20

Metamorphosis.

Question 21

How many stages does a frog go through in it’s life cycle?

Answer 21

4: egg, tadpole, froglet, adult.

Question 22

Although adapted to land, most amphibians must have access to a watery environment to:

Answer 22

Reproduce.

Question 23

Reptiles cannot regulate their own body heat, which is also known as:

Answer 23

Ectothermic.

Question 24

Reptiles respire through:

Answer 24

Lungs.

Question 25

The geographical range of reptiles is limited by:

Answer 25

Temperature.

Question 26

Reptiles have/use:

Answer 26

Internal fertilization.

Question 27

While dissecting an organism from the group Testudinata, you remove the ventral portion of the shell. Name that part.

Answer 27

Plastron.

Question 28

Feathers, used by birds to fly, are made of keratin and are modified:

Answer 28

Scales.

Question 29

The bones of birds are highly adapted for flying and can be best described as:

Answer 29

Thin and hallow.

Question 30

Mammals, as well as birds, have:

Answer 30

A four-chambered heart.

Question 31

The sheet of muscle at the bottom of the rib cage of mammals that allows for breathing is called the:

Answer 31

Diaphragm.

Question 32

(T/F) Cnidarians are characterized by stinging nematocysts.

Answer 32

True.

Question 33

(T/F) Because of the presence of fangs, spiders belong to the subphylum Chelicerata.

Answer 33

True.

Question 34

(T/F) There are more arthropod species on Earth that all of the other animal species combined.

Answer 34

True.

Question 35

(T/F) Sharks and rays have skeletons made of cartilage.

Answer 35

True.

Question 36

(T/F) Arthropods were the first invertebrates with lungs for gas exchange.

Answer 36

False.

Question 37

(T/F) Watertight egg, amniotic eggs, are a bird and reptile adaptation of life on land.

Answer 37

True.

Question 38

(T/F) All bony fish use external fertilization.

Answer 38

True.

Question 39

(T/F) Some fishes give birth to live young (ovoviviparous).

Answer 39

True.

Question 40

(T/F) Reptiles body temperature is mostly determined by the temperature of the environment.

Answer 40

True.

Question 41

(T/F) Ovoviviparous reptiles carry their eggs in their bodies until after hatching.

Answer 41

True.

Question 42

(T/F) Some feathers are specialized for flight (contour) and some are for insulation (down).

Answer 42

True.

Question 43

(T/F) The structure of a mammals jaw and teeth usually reveal its diet.

Answer 43

True.

Question 44

(T/F) Reptiles are ectotherms.

Answer 44

True.

Question 45

(T/F) Like some reptiles, monotremes (platypus, echidna) are oviparous.

Answer 45

True.

Question 46

Unlike reptiles, mammalian young are dependent on parental care for:

Answer 46

Food, protection, learning.

Question 47

The offspring of marsupial mammals:

Answer 47

Are born early and complete their development in their mother’s pouch.

Question 48

Mammals that lay eggs are:

Answer 48

Monotremes.

Question 49

Egg-laying mammals are also:

Answer 49

Oviparous.

Question 50

Offspring remain inside the mother until development is essentially complete in:

Answer 50

Placental mammals.