Animal Diversity (Exam 4)

Question 1

which phylum of animals has a dorsal- hollow nerve cord?

Answer 1

chordata

Question 2

to which phylum do sponges belong?

Answer 2

porifera

Question 3

stinging tentacles are a significant feature of which Phylum of animals?

Answer 3

cnidaria

Question 4

how does a Cartilaginous fish differ from a Jawless fish? How are they similar

Answer 4

• Cartilaginous fish (sharks) have articulating jaws
• jawless fish have teeth but cannot chew or clamp down and can only attach to host.

Question 5

type of skeleton: human

Answer 5

endoskeleton

Question 6

type of skeleton: turtle

Answer 6

endoskeleton

Question 7

type of skeleton: jellyfish

Answer 7

hydrostatic

Question 8

type of skeleton: crab

Answer 8

exoskeleton

Question 9

digestive system: insect

Answer 9

complete

Question 10

digestive system: human

Answer 10

complete

Question 11

digestive system: earthworm

Answer 11

complete

Question 12

endoskeletons

Answer 12

are internal and are made up of bones and/ or catilage. animals with endoskeletons have softer tissues covering the outside of their bodies. EX: humans, fish, birds, and reptiles

Question 13

exoskeletons

Answer 13

are external and cover all exposed surfaces of the animal. there is no soft tissue covering the outside of their bodies. EX: crabs, insects

Question 14

hydrostatic skeleton

Answer 14

are areas of confined fluids under pressure within an animals body. No solid/ rigid framework. EX: worms, jellyfish

Question 15

pros and cons of endoskeletons

Answer 15

1. some protection to internal organs
2. good range of motion, stead size growth
3. internal framework allows for larger size (biggest animals)

Question 16

pros and cons of exoskeletons

Answer 16

1. most protection to internal organs
2. limit range of motion
3. growth= shedding
4. rapid size increase
5. most vulnerable during shedding
6. limitation in great size

Question 17

complete digestive tract

Answer 17

has 2 openings, mouth and anus

Question 18

incomplete digestive tract

Answer 18

only 1 opening to the outside, food enters through it and waste goes out through it.

Question 19

symmetry

Answer 19

3 types: asymmetrical, radial, and bilateral.

Question 20

bilateral symmetry

Answer 20

paired body parts on either side of the median plane. EX: humans

Question 21

asymmetrical

Answer 21

an organism that lacks symmetry. EX: some sponges

Question 22

segmentation

Answer 22

the repetition of body parts along the longitudinal axis of the body. EX: earthworm

Question 23

Porifera

Answer 23

EX: SPONGES
1. asymmetrical
2. intercellular
3. endoskeleton
4. unsegmented

Question 24

Cnidaria

Answer 24

EX: JELLYFISH
1.stinging tentacles
2. radial symmetry
3. incomplete
4. hydrostatic

Question 25

Platyhelminthes (flatworms)

Answer 25

EX: FLATWORMS, LIVERFLUKE. THINK PINK RIBBON
1. bilaterally symmetrical
2. incomplete digestive system
3. unsegmented

Question 26

Nematoda or Aschelminthes (unsegmented)

Answer 26

EX: ASCARIA
1. unsegmented
2. complete
3. bilateral
4. hydrostatic

Question 27

Annelida (segmented worms)

Answer 27

EX: EARTHWORMS
1. bilateral
2. hydrostatic
3. complete digestive
4. segmented

Question 28

consists of fluids under pressure

Answer 28

hydrostatic

Question 29

offers the least protection to internal organs

Answer 29

hydrostatic

Question 30

consists of bone and/ or cartilage

Answer 30

endoskeletal

Question 31

must be shed in order for the animal to grow

Answer 31

exoskeletal

Question 32

the largest animals in the world have this skeletal system

Answer 32

endoskeletal

Question 33

which phylum consists of animals with exoskeletons and jointed appendages

Answer 33

arthropoda

Question 34

which phylum of animlas has specialized stinging tentacles

Answer 34

cnidaria

Question 35

Coral is related to

Answer 35

jellyfish (both cnidarians)

Question 36

horseshoe crab is related to

Answer 36

crayfish

Question 37

a leech is in the same Phylum as

Answer 37

an earthworm

Question 38

Mollusca

Answer 38

EX: CLAMS, SNAILS
1. exoskeleton
2. unsegmented
3. complete
4. bilateral

Question 39

Arthopoda

Answer 39

EX: LOBSTER, CRAB
1. segmented
2. complete
3. bilateral
4. exoskeleton

Question 40

Chordata

Answer 40

EX: HUMANS
1. endoskeleton
2. segmented
3. complete
4. bilateral

Question 41

Echinoderms

Answer 41

EX: SEASTARS
1. radial, bilateral, asymmetrical
2. unsegmented
3. complete
4. endoskeleton

Question 42

Name the 7 Chordata classes

Answer 42

1. Jawless Fish
2. Cartilage Fishes
3. Bony Fish
4. Amphibians
5. Reptiles
6. Birds
7. Mammals

Question 43

Jawless Fish (Class Petromyzontida)

Answer 43

“Rasping” mouthparts. EX: LAMPREY

Question 44

Cartilage fish (Class Chondrichthyes)

Answer 44

Cartilage skeletons; most marine (salt water). EX: SHARKS, RAYS

Question 45

Amphibians (Class Amphibia)

Answer 45

Most have gills in the early stages of life cycle and develop lungs for life on land. EX: FROGS, SALAMANDERS

Question 46

Reptiles (Class Reptilia)

Answer 46

Most are well- adapted for land. Amniote egg and scales prevent water loss. First true land animals EX: SNAKE, ALLIGATOR

Question 47

Birds (Class Aves)

Answer 47

Feathers and adaptations to make light weight for flight. Some flightless and limited- flight birds have other adaptations. Four chambered heart

Question 48

Mammals (Class Mammalia)

Answer 48

Skin, hair, warm- blooded, mammary glands to nurse young. Usually intelligent. EX: HUMANS, FOX, WOODCHUCK

Question 49

Bony Fish (Class Pisces)

Answer 49

Fish with true bone perch tissue with endoskeletons. EX: TUNA, PICKEREL, BASS