Animal Diversity

Question 1

Animals are classified under which DOMAIN?

Answer 1

Domain Eukarya

Question 2

What KINGDOM are animals under?

Answer 2

Kingdom Animalia

Question 3

Under what CLADE are animals under?

Answer 3

clade Metazoa

Question 4

The phylogenetic tree divides the Metazoa clade in what TWO major clade?

Answer 4

1. Phylum Porifera, The sponges 2. Phylum Eumetazoa, All other animals

Question 5

What leads biologist to classify sponges in their own phyla?

Answer 5

Sponges have a unique body forms.

Question 6

What is unique about sponges that sets them seperately from other phylas?

Answer 6

They lack true tissue and organs They have no body symmetry They are sessile No mouth or anus

Question 7

What is the symmetry of Phylum Porifera (sponges)?

Answer 7

Asymmetrical (no symmetry)

Question 8

What is the tissue organization of spnges?

Answer 8

No tissue, aggregate of different cells, no body layers

Question 9

Do sponges have a body cavity?

Answer 9

No body cavity

Question 10

Do sponges have Digestive opening?

Answer 10

No, no mouth or anus

Question 11

Do sponges have a Circulatory or Nervous system?

Answer 11

No

Question 12

What kind of habitat do sponges have?

Answer 12

Marine habitat

Question 13

What kind of Excretory system do sponges have?

Answer 13

pores and channels for circulation of water, oxygen, nutrients and to remove waste.

Question 14

What kind of support system do sponges have?

Answer 14

Silica or calcium-carbonate based spicules

Question 15

Do sponges have segmentation, appendages or locomotion?

Answer 15

No, No, No

Question 16

What is an organism was used for Phylum Cnidaria in class?

Answer 16

Hydras

Question 17

What are the TWO body forms that Phylum Cnidarians have in their life cycles?

Answer 17

1. Medusa (umbrella-like, free swimming stage) 2. Polyp (cylindrical)

Question 18

What is the symmetry of a Hydra?

Answer 18

radial symetrical

Question 19

A Blastopore becomes what in the protostomes and what in deuterosomes?

Answer 19

Mouth in protostomes Anus in deuterosomes

Question 20

What are the two major groups within the Protostomes?

Answer 20

Lophotrochozoa Ecdysozoa

Question 21

Under the Protostomes what is a Lophotrochozoa?

Answer 21

They are named for trochophore larvae found in annelids and molluscs.

Question 22

Under the Protostomes what is an Ecdysozoa?

Answer 22

animals in this group exhibit molting or the shedding of their outer body cover.

Question 23

What is the outer covering called in nematodes?

Answer 23

Cuticle

Question 24

What is the outer covering called in arthropods?

Answer 24

exoskeleton

Question 25

What are the two clades under the Phylum Metazoa?

Answer 25

Eumetazoa Porifera

Question 26

How do we devide the clade Eumetazoa?

Answer 26

Radial symmetry and Bilateral symmetry

Question 27

What is the only radial symmetrical clade?

Answer 27

Cnidaria

Question 28

What is the name of the clade for animals with bilatiral symmetry (you better not get this wrong!!!)?

Answer 28

Clade Bilateria

Question 29

When looking at Clade Bilateria what three clades come out of it? How are they seperated?

Answer 29

LED- Lophotrochozoa (LOW-FO-TRO-KO-ZOA), Ecdysozoa ( EK-DIE-SOZOA), Deuterostomia (DU-TERO-STOMIA) LE-D

Question 30

What two phylums are under clade Deuterostomia?

Answer 30

Echinodermata (Starfish), Chordata (Pig, Lancelet)

Question 31

What are the two phylums under the clade Ecdysozoa?

Answer 31

Nematoda, Arthropoda

Question 32

What are the three phylums under the clade Lophotrochozoa? How are they seperated?

Answer 32

PAM- Platyhelminthes (Flat worms) , Annelida (Earthworm), Mollusca (Clams) P- AM

Question 33

What are the two phylums under clade Ectosozoa?

Answer 33

Nematoda (*Ascaris* Roundworms), Arthropods (Grasshopper)

Question 34

What does an Acoelomate consist of (2)?

Answer 34

3 layered bodies without a body cavity. Tissue from the mesoderm fills the space where cavity might be (tissue layers closely packed on one another).

Question 35

What does a Pseudocoelomate consist of?

Answer 35

3 layered bodies with a cavity between the endoderm and medoderm

Question 36

What does a Coelomate consist of? How are the guts of a Coelomate organism suspended?

Answer 36

3 layered bodies with a coelom (cavity) WITHIN the mesoderm (completely surrounded by mesoderm) They are suspended by Mesodermal membranes within body cavity