Bio Lab Practical 2

Front 1

Phylum Annelida

Back 1

Triploblastic, eucoelomate
Bilaterally symmetrical
Protostomes
Segmented
Gas exchange through skin/gills
Closed circulatory system

Front 2

Class Polychaeta

Back 2

marine annelids
(well-developed heads with eyes and antennae)

Front 3

Class Hirudinea

Back 3

Leeches. Dorsoventrally flattened
First and last segments form suckers
Posterior and anterior suckers

Front 4

Hirudin

Back 4

Substance secreted by hirudinea into the wound of host to prevent coagulation of blood.

Front 5

Class Oligochaeta

Back 5

Earthworms and freshwater worms.
Means "few setae"

Front 6

Eucoelomates

Back 6

All annelid worms are eucoelomates (have a true coelom)

Front 7

Peritoneum

Back 7

Mesoderm -derived lining of the body cavity for animals that possess a true coelom

Front 8

Tagmata

Back 8

Segmented regions

Front 9

3 Regions

Back 9

Heads, Thorax, Abdomen

Front 10

Phylum Arthropoda

Back 10

Exoskeleton

Front 11

Molt

Back 11

To shed layers

Front 12

Instars

Back 12

Stages of animal's life between successive molts

Front 13

Ecdysis

Back 13

Process of molting

Front 14

Ecdysones

Back 14

Steroid hormones that control molting

Front 15

Trilobites

Back 15

First group of arthropods. Elongated and flattened with obvious head region.

Front 16

Cephalothorax

Back 16

A fused head and thorax region

Front 17

Chelicerae

Back 17

First pair of appendages, used to grab food and shit

Front 18

Class Arachnida

Back 18

Have simple eyes, no antennae, and no jaws. (cephalothorax, abdomen, simple eyes, chelicerae, pedipalps, walking legs, and spinnerets)

Front 19

Cheliceriformes

Back 19

Horseshoe crabs, spiders, scorpions. (Fused head and thorax region)

Front 20

Class Merostomata

Back 20

Horseshoe crab. Oval bodies and spine-like tails. (Cephalothorax, abdomen, compound eye, simple eye, telson (spine), chelicerae, walking legs)

Front 21

Myriapoda

Back 21

Centipedes and millipedes. Possess many legs. Distinct head and long trunk.

Front 22

Pedipalps

Back 22

First pair of walking legs

Front 23

Class Chilopoda

Back 23

Centipedes. Modified appendage called poison claw that delivers venom to the prey.

Front 24

Class Diplopoda

Back 24

Millipedes, vegetarians. Two pairs of legs

Front 25

Crustacea

Back 25

Lobsters, crayhfish, crabs, and shrimp.

Front 26

Crustacea

Back 26

Two pairs of antennae, pair of biting jaws (mandibles), maxillae and maxillipeds (additional mouthparts for manipulating food), and biramous appendages (branched or Y-shaped)

Front 27

Hexapoda

Back 27

6 legs

Front 28

Class Insecta

Back 28

Diptera, Lepidoptera, Coleoptera, and Hymenoptera. Three different body regions, 6 walking legs, and one or two pairs of wings.

Front 29

Diptera

Back 29

Flies

Front 30

Lepidoptera

Back 30

Butterflies and moths

Front 31

Coleoptera

Back 31

Beetles

Front 32

Hymenoptera

Back 32

Bees, wasps, and ants

Front 33

Mandibulate

Back 33

Chewing mouth part

Front 34

Haustellate

Back 34

Sucking mouth part

Front 35

Holometabolous metamorphosis

Back 35

Complete metamorphosis. Egg, larva, pupa, adult. (Butterfly)

Front 36

Phylum Echinodermata

Back 36

Spiny-skinned, marine animals characterized by pentaradial symmetry. Multiples of five arranged in a radial pattern.

Front 37

Class Asteroidea

Back 37

Sea stars and starfishes.

Front 38

Class Crinoidea

Back 38

Sea lilies.

Front 39

Class Echinoidea

Back 39

Sea urchins and sand dollars. Moveable spines.

Front 40

Class Holothuroidea

Back 40

Sea cucumbers. Cylindrical body with no arms or spines.

Front 41

Class Ophiuroidea

Back 41

Brittle stars. Five slender, jointed arms attached to small central disk.

Front 42

Oral Surface

Back 42

Underside of starfish where mouth is located.

Front 43

Aboral Surface

Back 43

Dorsal upper surface