Practicals

Question 1

The ____ is the core of the endoskeleton

Answer 1

vertebral column

Question 2

The ___ provides support for, and protects the dorsal hollow nerve cord and is used as a site for muscle attachment

Answer 2

vertebral column

Question 3

“<b>What are the 4 features that unite chordates?</b>”

Answer 3

<div> <div> In last week’s practical you learned the features that unite the chordates as a group:<br></br><ol> </ol><ul> <li> <div>Notochord </div> </li> <li> <div>Hollow dorsal nerve cord </div> </li> <li> <div>Pharyngeal slits (and bars) </div> </li> <li> <div>Post anal tail</div> </li> </ul> </div> </div>

Question 4

Ascidian larvae belong to which subphyla?

Answer 4

Subphylum Urochordates (tunincates)

Question 5

<p>What functions do you think the elytra serve? Why?</p>

Answer 5

<p></p>

Question 6

<p>Which Class?</p>

Answer 6

<p>Class Ophiuroidea</p>

Question 7

Answer 7

Chelicerate, Lxodia (Ticks)

Hypostome mouth parts

Question 8

What is this & what’s it’s function?

Lowest taxonomic rank

Answer 8

<p>Proglottids - small reproductive units containing gametes, break off in the hosts faeces<br></br><br></br><span>Cestoda</span><br></br>Platyhelminths</p>

Question 9

What is this?

Answer 9

Ammocoetes larva

Lamprey

Question 10

Question 11

Question 12

What is this?

Answer 12

Lancelet

Cephalocordates

Question 13

What is this?

Answer 13

trilobite

arthropoda

Question 14

Question 15

Question 16

Question 17

Question 18

Question 19

Question 20

Question 21

Question 22

Question 23

Question 24

Question 25

Question 26

Question 27

Question 28

Question 29

Question 30

Question 31

Question 32

What is this?

Answer 32

Choanocytes Porifera

Question 33

What is the lowest taxonomic rank?

Answer 33

Doliglossus sp. | Hemichordate

Question 34

How are these similar to Echinoderms?

Answer 34

Bilateral larvae

Question 35

How do Myxini & Hyperoartia feed?

Answer 35

Myxini have toothed plates and a rasping tongue that attach to food host, while Hyperoartia don't feed as adults, only in the the juvenile stage

Question 36

From what order is this cross section slide from?

Answer 36

Mussels Bivalve Mollusca

Question 37

Question 38

Question 39

______ replaces the notochord during embryonic development, except in _____, that retain the notochord into adulthood.

Answer 39

Vertebral column, Agnathans

Question 40

Question 41

Question 42

Question 43

Question 44

Question 45

What is the function of the pedicellariae?

Question 46

Question 47

What chordate features are found in adult ascidians

Question 48

What chordate features that are present in the ascidian larval stage, and what happens to them in the adult stage

Question 49

These animals are an ecto-parasitic on fish. They attach to their prey with their mouth and rasp the flesh with their sharp horny teeth. To promote the flow of blood, they inject an anticoagulant into the wound. What are they?

Question 50

These animals are scavengers that have a notochord, skull made of cartilage, and no vertebrae. What are they?

Answer 50

Hagfish Class: Myxini Superclass: Agnatha

Question 51

What are the similarities and differences between the jawless fish and the ray finned fish?

Question 52

An endoskeleton made of small, calcareous plates bound together by connective tissue belongs to which Phyla?

Answer 52

Echinoderms

Question 53

Question 54

Question 55

Question 56

Question 57

Question 58

Question 59

Question 60

Question 61

Question 62

Describe the circulatory system of mammals

Question 63

Describe the circulatory system of fish?

Question 64

Describe the circulatory system of amphibians