Taxonomy Lec Midterms

Question 1

Phylum Porifera Characteristics:

Answer 1

Shape- irregular, vaselike, flat/globular
Symmetry: asymmetrical, symmetrical. (Radial)
Has a single Cavity (spongocoel/paragaster)
Oscula- large opening
Ostia-small opening
Aquatic sessile
Asexual through buds/gemmules
Sexual through eggs and sperm
Canal:ASL (ASCON SYCON LEUCON)

Question 2

Ascon

Answer 2

(IOSOO)
Ingressing water
Ostia
Spongocoel
Osculum
Outside

Question 3

Sycon

Answer 3

(IDIPRASOO)
INGRESSING WATER
DERMAL OSTIA
INCURRENT CANAL
PROSOPYLE
RADIAL CANAL
APOPYLE
SPONGOCOEL
OSCULUM
OUTSIDE

Question 4

Leucon

Answer 4

(IIFAEOO)
INGRESSING WATER
INCURRENT CANAL
FLAGELLATED CHAMBER
APOPYLE
EXCURRENT CANAL
OSCULUM
OUTSIDE

Question 5

Calcarean

Answer 5

Calcareous spicules and ASL

Question 6

Hyalospongia

Answer 6

Siliceous spicules, LS

Question 7

Demospongiae

Answer 7

Siliceous spicules and Leucon

Question 8

Sclerospongiae

Answer 8

Silicaceous spicules and spongin fibers and Leucon

Question 9

Phylum Cnidaria Characteristics

Answer 9

Radially symmetrical
Either sessile cylindrical or polyp
Free floating bell-like medusa
Stinging cell (nematocyst)
Digestive cavity sac-like
Asexual in polyps
Sexual in medusa
Dioecious
Monoecious

Question 10

Individuals in the form of polyps or medusa with medusa;non-cellular mesoglea

Answer 10

Hydrozoa

Question 11

Subclass Leptolinae

Answer 11

(ALS)
Order Anthomedusae
Order Leptomedusae
Order Siphonophorae

Question 12

Subclass Trachylinae

Answer 12

(ALTN)
Order Actinulidae
Order Limnomedusae
Order Narcomedusae
Order Trachymedusae

Question 13

True jellyfish;free floating

Answer 13

Scyphozoa

Question 14

Sea Anemones and corals; all attached to polyps ( no medusa )

Answer 14

Anthozoa

Question 15

Flat oral disc around mouth with hollow tentacles whic leads lead into pharynx

Answer 15

Stomadeum

Question 16

Special messenchyme amoebocytes that secretes spicules

Answer 16

Scleroblast

Question 17

All of spicules consists of these w/c is deposited either calcite or silica

Answer 17

Core of organic material

Question 18

Containing calcium carbonate/calcite

Answer 18

Calcareous spicules

Question 19

Containing silica or silicate

Answer 19

siliceous spicules

Question 20

Is an organic, horny elastic substance resembling silk in chemical composition

Answer 20

Spongin

Question 21

The excurrent canal

Answer 21

Osculum

Question 22

The incurrent canal

Answer 22

Ostium

Question 23

Large central cavity

Answer 23

Paragaster

Question 24

Ingest food or act as the storage cell

Answer 24

Amoebocytes

Question 25

Lines the canal

Answer 25

Choanocytes

Question 26

Opening leading to flagellated chamber

Answer 26

Prosopyle

Question 27

Opening leading to spongocoel

Answer 27

Apopyle

Question 28

Either free-living or parasitic forms; the free-living forms are fresh or marine waters ior in soil Has elongated cylindrical body usually tapered at both ends Digestive tube is generally straight External is covered with cuticle

Answer 28

Nematodes

Question 29

BY means of one or two renette glads locatted near pharynx

Answer 29

Osmoregulatory mechanism

Question 30

Consists of a circumetric nerve ring with dorsal, lateral and ventral ganglia

Answer 30

Ganglionic nervous system

Question 31

Sense organs for chemoreceptions

Answer 31

Plasmid

Question 32

Causal chemoreceptors occuring in certain nematodes

Answer 32

Nematodes with plasmids

Question 33

Class Phasmida example

Answer 33

Ascaris

Question 34

Genus of parasitic nematode worms

Answer 34

Ascaris

Question 35

Ascaris lumbricoides

Answer 35

Largest intestinal round worms 200000 eggs a day

Question 36

Ascaris lumbricoides infection is aka

Answer 36

Ascariasis

Question 37

Aka as thread-human pinworm

Answer 37

Enterobius vermicularis

Question 38

Adult pinworm male is

Answer 38

1-4 mm

Question 39

Adult female pinworm is

Answer 39

8-13 mm

Question 40

Is a parasitic nematode worm that lives in the small instestine of its hst

Answer 40

Necator

Question 41

Without phasmids

Answer 41

Aphasmida or Adenophorea

Question 42

Distinguishe Characteristics of Annelida

Answer 42

Homogenous segmentation Coelom Complete digestive tube Excretion by means of metanephridia

Question 43

A pair of segment

Answer 43

Metanephridia

Question 44

Consisting of an anterior ganglionic mass and a single paired segment

Answer 44

Ganglionic nervous system

Question 45

Sense of organs may be in the form of tactile appen

Answer 45

tactile appendages, eyes and lithocyst

Question 46

Typical form in the

Answer 46

Trochopore larva

Question 47

Organism bear both male and female reproductive organ in the same individual

Answer 47

Monoecious

Question 48

Organism bears EITHER male or female

Answer 48

Dioecious

Question 49

With distinct segmentation

Answer 49

Polychaeta

Question 50

Clamworm

Answer 50

Nereis virens

Question 51

most marine; small size; segmentation chiefly internal

Answer 51

Arachiannelida

Question 52

distinct segmentation but with in distinct head

Answer 52

Oligochaeta

Question 53

Earthworm

Answer 53

Lumbricus terrestris

Question 54

Most specialized annelid with small and fixed number of segments

Answer 54

Hirudinea

Question 55

Mecicinal leech

Answer 55

Hirudo medicinalis

Question 56

Dorso-ventrally flattened worms Acoelomate Bilaterally symmetrical

Answer 56

Flatworms

Question 57

Osmoregulation by means of

Answer 57

Protonephridia

Question 58

Mass of nerve tissue

Answer 58

Ganglionic

Question 59

Aquatic and mistly matine With ciliated epidermis

Answer 59

Tubellaria

Question 60

Ectoparasite flukes

Answer 60

Monogenean

Question 61

Parasitic worms outer body surface covered by a non ciliated tegument (cuticula)

Answer 61

Trematoda

Question 62

Lung Fluke

Answer 62

Paragonimus westermani

Question 63

Human liver fluke

Answer 63

Clonorchis sinensis

Question 64

Liver fluke

Answer 64

Fasciola hepatica

Question 65

Blood fluke

Answer 65

Schistosoma