Phylum Annelida

Question 1

Phylum Annelida common name

Answer 1

Segmented worms, earthworms

Question 2

Phylum Annelida

Feeding mechanisms

Answer 2

Deposit feeder
suspension feeder
fluid feeders

Question 3

What is deposit feeding

Answer 3

eat dirt, sand, mud

Question 4

Phylum Annelida

How do they breathe?

Answer 4

Cutaneous respiration

Diffuse gas through moist skin

Question 5

Phylum Annelida

Protonephridium characteristics

Answer 5

Diffusion
Closed
Flagellum
Energy saving
Water using

Question 6

Phylum Annelida

Metanephridium characteristics

Answer 6

Open
Active transport
Cilliated
Energy using
Water saving

Question 7

Phylum Annelida

Water pressure inside coelom to keep body shape

Answer 7

Hydrostatic skeleton

Question 8

Phylum Annelida

Body level of organization

Answer 8

Organ system

Question 9

Phylum Annelida

Digestive tract

Answer 9

Complete digestive system

Question 10

Phylum Annelida

Type of symmetry

Answer 10

Bilateral

Question 11

Phylum Annelida

Only phylum so far with a Ganglia + ___

Answer 11

Ventral nerve cord

Question 12

Phylum Annelida

What is metamerism?

Answer 12

Serial repetition of body parts

Question 13

Phylum Annelida

What are the advantages of a metameric body?

Answer 13

Injury is often less fatal
Compartmentalization allows for more precise body control
Allows for evolutionary tinkering

Question 14

Phylum Annelida

What is tagmatization?

Answer 14

Specialization of repeated parts

Question 15

Phylum Annelida

Synapomorphy with exception

Answer 15

Setae

lost in leeches

Question 16

Phylum Annelida

What species lost setae?

Answer 16

Leeches

Question 17

Phylum Annelida

Proposed super phylum

Answer 17

Lophotrochozoa

Question 18

Class Errantia

“Err-“ meaning

Answer 18

Wandering

Question 19

Class Errantia

Synapomorphy

Answer 19

Parapodia

Question 20

Class Errantia

Locomotion

Answer 20

Alternate contraction of L and R longitudinal muscles using parapodia to grip the environment

Question 21

Class Errantia

Prostomium

Answer 21

“nose area”

2-4 Pairs of eyes

Question 22

Class Errantia

Eye types

Answer 22

Photoreceptors: Light/dark only

Lens, cornea, retina - Hunt by sight

Question 23

Class Errantia

Peristomium

Answer 23

1st true segment

Sensory tentacles - Hunting

Question 24

Class Errantia

Cuticle purpose

Answer 24

Non-living layer

Protects against drying out

Question 25

Class Errantia | Statocysts purpose? Why?

Answer 25

Sensitive to gravity, forces, and water currents | Because they swim

Question 26

"Pro-" Meaning

Answer 26

Before

Question 27

"-Stomium" meaning

Answer 27

Mouth

Question 28

"Peri-" meaning

Answer 28

Around

Question 29

Class Sedentaria | Kind of synapomorphy

Answer 29

Greatly reduced setae | 4 per segment max

Question 30

Class Sedentaria, Order Clitellata | Clitellum purpose?

Answer 30

Secretes coccoon for larvae | Protects from predators and drying out

Question 31

Order Clitellata, Family Lumbricidae common name

Answer 31

Earthworms

Question 32

Order Clitellata, Family Lumbricidae | Locomotion

Answer 32

Alternate circular and longitudinal muscles using setae to grip the environment

Question 33

Order Clitellata, Family Lumbricidae | Digestive tract path

Answer 33

mouth -> pharynx -> esophagus -> crop -> gizzard -> intestine -> anus

Question 34

Order Clitellata, Family Lumbricidae | The crop is ___

Answer 34

Glandular

Question 35

Order Clitellata, Family Lumbricidae | The gizzard is responsible for ___

Answer 35

Grinding

Question 36

Order Clitellata, Family Lumbricidae | Where is the typhlosole

Answer 36

Inside the intestine

Question 37

Order Clitellata, Family Lumbricidae | Where is the purpose of the typhlosole

Answer 37

increase surface area

Question 38

Order Clitellata, Family Lumbricidae | Reproductive anatomy

Answer 38

Monoecious

Question 39

Order Clitellata, Family Lumbricidae | Mating style and hatch time?

Answer 39

Bidirectional sperm exchange | 1-2 weeks to hatch

Question 40

Order Clitellata, Family Hirudinidae | "Hirudino" meaning

Answer 40

Leech

Question 41

Order Clitellata, Family Hirudinidae | Characteristics

Answer 41

Anterior and posterior suckers

Question 42

Order Clitellata, Family Hirudinidae | Locomotion

Answer 42

Alternating of circular and longitudinal muscles and using anterior and posterior suckers to grip the environment

Question 43

Order Clitellata, Family Hirudinidae | Feeding behaviors

Answer 43

Fluid feeders and sometimes predators for small prey