PPt Animal Diversity (Ex 7)

Question 1

King Phillip Came Over For Grape Schnapps

Answer 1

Kingdom Phylum Class Order Family Genus Species

Question 2

Tissues

Answer 2

1. Layers of communicating cells that work together to perform the same function
2. Animals are categorized by the presence or absence of tissue, then the number of tissue layers

Question 3

Parazoa

Answer 3

No true tissues

Question 4

Eumetazoa

Answer 4

Two or three tissues

Question 5

Diploblast

Answer 5

Two tissues

Question 6

Triploblast

Answer 6

Three tissues

Question 7

Symmetry

Answer 7

1. Eumetazoans are divided into two groups
2. Focus on the juvenile form of an organism

Question 8

Radial symmetry

Answer 8

Can be cut in any direction with mirrored halves

Question 9

Bilateral symmetry

Answer 9

Can only be cut into mirrored left and right sides

Question 10

Blastopore Fate

Answer 10

1. Triploblasts form a tubular gut tube during the blastocyst stage
2. Blastopore develops into either the mouth or the anus
3. Name depends on fate of blastopore

Question 11

Protostome

Answer 11

“First mouth”

Question 12

Deuterostome

Answer 12

“Second mouth”

Question 13

Protostomes are further…

Answer 13

Divided based on larval body form

Question 14

Lophotrochozoans

Answer 14

Hollow feeding appendage

Question 15

Trochophores

Answer 15

Use cilia for motility

Question 16

Ecdysozoa

Answer 16

Molting animals

Ecdysis-exoskeleton that must be shed in order to grow

Question 17

Coelom

Answer 17

Body cavity with endoderm and ectoderm lined by the mesoderm

Question 18

Pseudocoelom

Answer 18

The ectoderm is lined by the mesoderm but not the endoderm

Question 19

Acoelomates

Answer 19

The body cavity has been lost and is filled with mesoderm tissue

Question 20

Phyla we talked about

Answer 20

1. Porifera (Sponges)
2. Cnidaria (Jellyfish)
3. Platyhelminthes (Flatworms)
4. Mollusca (Mollusks)
5. Annelida (Worms/Leeches)
6. Nematoda (Roundworms)
7. Arthropoda (Arthropods)
8. Echinodermata (Echinoderms)
9. Chordata (Chordates)

Question 21

Porifera

Answer 21

1. Parazoa - No tissues
2. No symmetry
3. No coelom (not an acoelomate)
4. Sessile
5. Filter-feeders
6. Use chaonocytes to move water in and out of spongocoel

Question 22

Cnidaria

Answer 22

1. Eumetazoa
2. Diploblast (only phylum)
3. Radial symmetry (only phylum)
4. No coelom (not acoelomate)
5. Sessile or free-swimming (or both)
6. Alternating life cycles
7. Cnidocytes—stinging cells containing nematocyst

Question 23

Platyhelminthes

Answer 23

1. Bilateral symmetry
2. Triploblastic
3. Protostomes
4. Lophotrochozoan
5. Acoelomate (only phylum)
6. Free-swimming or parasitic
7. Freshwater or marine

Question 24

Nematoda

Answer 24

1. Bilateral symmetry
2. Triploblastic
3. Pseudocoelomate (only phylum)
4. Protostome
5. Ecdysosozoan (cuticle)
6. Exoskeleton
7. Parasites, detritovores, predators
8. Eutely—C. elegans

Question 25

Annelida

Answer 25

1. Bilateral symmetry
2. Triploblastic
3. Protostome
4. Lophotrochozoan
5. Coelomate
6. Chaeta
7. Metamerism
8. Freshwater or marine

Question 26

Mollusca

Answer 26

1. Bilateral symmetry
2. Triploblastic
3. Protostomes
4. Lophotrochozoans
5. Coelomate
6. Tasty with butter
7. 3 classes: Gastropoda, Bivalvia, Cephalopoda

Question 27

Arthropoda

Answer 27

1. Bilateral symmetry
2. Triploblastic
3. Protostome
4. Ecdysozoan
5. Coelomate
6. Chitin in exoskeleton
7. Bodies sectioned into tagmata
8. Most successful phylum—most diverse body plans, huge number of species

Question 28

Echinodermata

Answer 28

1. Bilateral* symmetry
2. Secondary radial symmetry in sea stars
3. Triploblastic
4. Deuterostomes
5. Coelomate
6. Nerve ring around mouth
7. Endoskeleton of calcified ossicles
8. Tube feet for locomotion

Question 29

Chordata

Answer 29

1. Bilateral
2. Triploblastic
3. Deuterostome
4. Coelomate
5. Dorsal, hollow nerve cord
6. Notochord
7. Pharyngeal gill slits
8. Post-anal tail