Zoology Flashcards
(145 cards)
1
Q
Where does the probably most intellegen intervertebrae belonge to
A: Scaphopoda
B: Gastropoda
C: Monophacopora
D: Cephalopoda
A
D: Cephalopoda
2
Q
Where do SAC (sea-squirt) animals belong?
A: Hemichordata
B: Prochordata
C: Chordata
D: Cephalochordata
A
B: Prochordata
3
Q
What is characteristic of phylum Hemichordata:
A: Rostrum
B: Stomochord
C: Chorda dorsalis
D: Notochord
A
B: Stomochord
4
Q
Where do hagfish belong?
A: Acrina/Myxini
B: Vertebrata/Gnathosmata
C: Craniata/Agnatha
D: Agnata/Cyclostomata
A
C: Craniata/Agnatha
5
Q
Where do Lamprays belong?
A: Craniata/Vertebrata
B: Gnathosmata/Cyclostomata
C: Agnata/Myxini
D: Vertebrata/Gnathosmata
A
A: Craniata/Vertebrata
6
Q
Which fin can be regarded as a limb (extemity) ?
A: Dorsal Fin
B: Caudal Fin
C: Pelvic Fin
D: All Thre
A
C: Pelvic Fin
7
Q
Wich is the most ancient type of scales (Characteristic of Chondrichthyes)?
A: Ganoid
B: Cosmoid
C: Placoid
D: Elasmoid
A
C: Placoid
8
Q
What kind of bodycovering (epithelium) do actinopterygians have?
A: Horny Scales
B: Slightly Cornified
C: Waterproofed
D: Non-cornified
A
D: Non-cornified
9
Q
What is the approximate number of species in class Actinopterygii?
A: 9 700
B: 15 000
C: 6 400
D: 21 000
A
D: 21 000
10
Q
What is characteristic of Cyprinus Carpio?
A: Hardly produces urine
B: Does not drink
C: Drinks small amount
D: Drinks mutch
A
B: Does not drink
11
Q
What is characteristic of Cod?
A: Does not drink
B: Drinks mutch
C: Drinks small amount
D: Produces mutch urine
A
B: Drinks mutch
12
Q
What structures may help the digestion of actinopterigians?
A: Spiral gut fold
B: Longitudinal gut fold
C: Pyloric caeca
D: All three
A
D: All three
13
Q
Wich can occur in Actinopterygians?
A: Sinus Venosus
B: Conus Arteriosus
C: Bulbus arteriosus
D: All three
A
D: All three
14
Q
What is the approximate number of reptilian species?
A: 6 400
B: 4 600
C: 4 400
D: 3 500
A
A: 6 400
15
Q
Which of the following occurs “first” in case of reptiles?
A: Disapperianse of sinous venous
B: Apperance of cornus arterious
C: Apparance of fetal membranes
D: All three
A
C: Apparance of fetal membranes
16
Q
Whice of the following occurs “first” among classes in Phylum Craniata in case of reptiles?
A: Inner fertalization
B: All adults forms breath with lungs
C: Direct development
D: All three
A
B: All adults forms breath with lungs
17
Q
What is characteristic of reptilian body covering?
A: Dermal scales
B: Epidermal osteoderma
C: Non of these
D: Both
A
C: Non of these
18
Q
What kind of skull type may existing squamous reptiles have?
A: Parapsid
B: Synapsid
C: Anapsid
D: Diapsid
A
D: Diapsid
19
Q
What function may the cloaca of Tesudo spp. have?
A: Breathing
B: Drinking
C: None of these
D: Both
A
C: None of these
20
Q
What can the cloaca of birds serve for?
A: Copulation with everted urodeum
B: “Drinking”
C: Breathing
D: None of these
A
B: “Drinking”
21
Q
What is the approximate number of avian species?
A: 11 000
B: 9 700
C: 8 000
D: 7 000
A
B: 9 700
22
Q
Where does Phasianus colchicus belong?
A: Columbiformers
B: Galliformes
C: Anseriformes
D: Paleognathae
A
B: Galliformes
23
Q
Where do Anas -ssp belong?
A: Columbiformes
B: Paleognathae
C: Anseriformes
D: Galliformes
A
C: Anseriformes
24
Q
Which of the following appears “first” in Phylum Craniata?
A: Liver
B: Metanephros
C: Pancreas
D: Homoiothermy
A
A: Liver
25
In which avian order may there be lymph node, copulatory organ, but usally there is no aftershaft?
A: Song of singing birds
B: Galliformes
C: Anseriformes
D: Columbiformes
**C: Anseriformes**
26
What is the approximate number of the mammalian species?
A: 4 000
B: 4 400
C: 4 600
D: 4 800
**C: 4 600**
27
In which order is there emmision of ultrasound?
A: Cetacea
B: Insectivora
C: Chiroptera
D: All three
**D: All three**
28
What is the source of lifting force in case of bat "wings"?
A: Sternal Keel (crest)
B: Acute down-stroke
C: Light (pneumatic) bones
D: Curved patagium
**B: Acute down-stroke**
29
What kind of aortic arch does mammalian have?
## Footnote
A: Double
B: Right
C: Left
D: Provided with conus aorticus
**C: Left**
30
What is the number of teets (mammae) in placentials, in what arrangement?
## Footnote
A: 2-22 in two rows
B: 0-22 in two rows
C: 2-22 in a circle
D: 0-22 in a circle
**A: 2-22 in two rows**
31
Which belongs to order Perissodactyla?
## Footnote
A: Camel
B: Tapir
C: Hippopotamus
D: All three
**B: Tapir**
32
Which mammalian order has the highest number of species and individuals?
## Footnote
A: Primates
B: Artiodacthyla
C; Insectivora
D: Rodentia
**D: Rodentia**
33
What is the common feature of Lagomorphs and Rodents?
## Footnote
A: Duble incissures
B: Mandibula: Lack of symphisis
C: Caecotrophy
D: None of these
**C: Caecotrophy**
34
How manny of the following traits mean difference between orders Cetacea and Pinnipedia: fur coat, blubber, weight bearing vertebral column, propulsive thrust by horizontal tail?
## Footnote
A: One of these
B: Two of these
C: Three of these
D: Four of these
**C: Three of these**
35
Carnassials of carnivores are?
## Footnote
A: Lower-upper premolars
B: Canine teeth
C: Incissors
D: Non of these
**D: Non of these**
36
What is written correctly?
A: Musca domestica
B: ctenocephalides
C: Muscidae
D: Ctenocephalides
**D: Ctenocephalides**
37
"The earliest name shoukd be used" Its the law of......
## Footnote
A: Nomenclature
B: Homonymia
C: Priority
D: Stability
**C: Priority**
38
"One particular name can be used only for one taxon" It means ...
## Footnote
A: Homonymia
B: Priority
C: No Homonymia
D: Stability
**C: No Homonymia**
39
What is NOT the right order?
## Footnote
A: Species - Genus - Family
B: Genus - Family - Order
C: Genus - Species - Family
D: Order - Class - Subphylum
**C: Genus - Species - Family**
40
"Binominal system" is based on ..
## Footnote
A: One name
B: Two names
C: Three names
D: Order
**B: Two names**
41
Classification of organisms on the basis of their overall similarity is ..
A: Phenetics
B: Cladistics
C: Evolutionary cladistics
D: Evolutionary systematics
**A: Phenetics**
42
Whittaker recommended ... Kingdoms
## Footnote
A: 5
B: 4
C: 3
D: 2
**A: 5**
43
"Geographical isolation; They show morphological difference but can still exhange genes when they meet and mate"
## Footnote
A: Biospecies
B: Genetic species
C: Subspecies
D: Sibling species
**C: Subspecies**
44
"The modern science of classification is called"
## Footnote
A: Zoology
B: Phenetics
C: Cladistics
D: Biosystematics
**D: Biosystematics**
45
Which is not a taxonomic category?
## Footnote
A:Genera
B: Breed
C: Species
D: Order
**B: Breed**
46
Which order does the genus Trypanosoma belong to?
## Footnote
A: Diplomonadida
B: Kinetoplastida
C: Trichomonadida
D: Amoebida
**B: Kinetoplastida**
47
Which order does the genus Leishmania belong to?
## Footnote
A: Kinetoplastida
B: Diplomonadida
C: Trichomonadida
D: Amoebida
**C: Trichomonadida**
48
What does the genus Giardia belong to?
## Footnote
A: Diplomonadida
B: Kinetoplastida
C: Amoebida
D: Trichomonadida
**A: Diplomonadida**
49
Which order does the genus Eimeria belong to?
## Footnote
A: Diplomonadida
B: Trichomonadida
C: Amoebida
D: Non of these
**D: Non of these**
50
Whice does not have cyst?
## Footnote
A: Trichomonas sp.
B: Entamoeba histolytica
C: Giardia sp.
D: Non of these
**A: Trichomonas sp.**
51
Which has cyst?
## Footnote
A: Babesia sp.
B: Trichomonas sp.
C: Giardia sp.
D: Plastmodium sp.
**C: Giardia sp.**
52
Which is the most important genus of coccidia with cyst formation?
## Footnote
A: Eimeria
B: Babesia
C: Plastmodium
D: Toxoplasma
**A: Eimeria**
53
Which of the genus belongs to cystogenic coccidia?
## Footnote
A: Eimeria
B: Plastmodium
C: Babesia
D: Toxoplasma
**D: Toxoplasma**
54
Which is the most important genus of haemosporinids?
## Footnote
A: Toxoplasma
B: Plastmodium
C: Babesia
D: Eimeria
**B: Plastmodium**
55
Which is the most important genus of piroplasms?
## Footnote
A: Eimeria
B: Babesia
C: Plastmodium
D: Toxoplasma
**B: Babesia**
56
Which develops also in blood-sucking arthropod vectors?
## Footnote
A: Plasmodium sp.
B: Babesia sp.
C: Trypanosoma sp.
D: All three
**D: All three**
57
Which group is the most closely related to cnidarians?
## Footnote
A: Myxoza
B: Porifera
C: Ctenophora
D: Microspora
**A: Myxoza**
58
In which class is the medusa stage absent?
## Footnote
A: Hydrozoa
B: Scyphozoa
C: Cubozoa
D: Anthozoa
**D: Anthozoa**
59
In which class is the polyp stage sometimes absent?
## Footnote
A: Anthozoa
B: Hydrozoa
C: Scaphozoa
D: Cubozoa
**B: Hydrozoa**
60
In which class is the budding of the polyp stage terminal?
## Footnote
A: Hydrozoa
B: Cubozoa
C: Scyphozoa
D: Antozoa
**C: Scyphozoa**
61
In which class is the budding of the polyp stage lateral?
## Footnote
A: Scyphozoa
B: Cubozoa
C: Hydrozoa
D: Anthozoa
**C: Hydrozoa**
62
What is the approximate number of species in Phylum Platyhelminthes?
## Footnote
A: 25 000
B: 11 000
C: 10 000
D: 3 000
**A: 25 000**
63
Which category do flatworms belong to?
## Footnote
A: Pseudocoelomata
B: Deuterostomia
C: Eucoelomata
D: Bilateralia
**D: Bilateralia**
64
What kind of gut do cestodes have?
## Footnote
A: One Branch (Tube)
B: Two-Branched (blind ending)
C: Three-branched
D: No gut
**D: No gut**
65
What kind of gut does Trematodes have?
## Footnote
A: One branch (tube)
B: Two-branched (blind ending)
C: Three-branched
D: No gut
**B: Two-branched (blind ending)**
66
Where does coracidum develop?
## Footnote
A: In worm uterus
B: In intermediate host
C: In exterior
D: In gravid segment
**C: In exterior**
67
In which category is the six-hooked oncosphere the first stage larva?
## Footnote
A: Class Pseudophyllidea
B: Order Cyclophyllidea
C: Order Pseudophyllidea
D: Class Cyclophyllidea
**B: Order Cyclophyllidea**
68
How manny ovaries does an adult Taenia usally have?
## Footnote
A: One
B: Two
C: Few
D: Hundreds
**D: Hundreds**
69
In which class is there pseudocoelome (primary, false body cavity)?
## Footnote
A: Rotatoria
B: Nematoda
C: Acanthocephalia
D: All three
**D: All three**
70
Males of which group have always copulatory bursa?
## Footnote
A: Adenophorea
B: Strongylida
C: Secernentea
D: Nematoda
**B: Strongylida**
71
Approximatly how manny described species do nematodes have?
## Footnote
A: 200 000
B: 20 000
C: 2 000
D: 200
**B: 20 000**
72
What is approximatly number of nematodes significant from the veterinary point of view?
## Footnote
A: 200 000
B: 20 000
C: 2 000
D: 200
**D: 200**
73
Into which category does the largest species of the following groups belong to?
A: Nematoda
B: Rotatoria
C: Cestoda
D: Acanthocephalia
**C: Cestoda**
74
What can be found in buccal capsule of nematodes?
## Footnote
A: Tooth
B: Protostylus
C: Leaf Crown
D: Radule
**A: Tooth**
75
Where does Lumbricus terrestris belong to?
## Footnote
A: Subclass Hirudinea
B: Class Hirudinea
C: Subclass Oligochaeta
D: Class Oligichaeta
**C: Subclass Oligochaeta**
76
What kind of feeding apparatus may leeches have?
## Footnote
A: Piercing snout
B: Citinous jaws
C: Muscular pharynx
D: All three
**D: All three**
77
What is characteristic of Lumbricus terrestris?
## Footnote
A: Heteronom segmentation
B: External fertilization
C: Chaetae (bristles) in bunches
D: Unlayered clitellum
**B: External fertilization**
78
In which category/categories can the absence if shell be observed?
## Footnote
A: Aplacophora
B: Gastropoda
C: Cephalopoda
D: All three
**D: All three**
79
Kairimons are responsible for the following communications?
## Footnote
A: Interspecific
B: Intraspecific
C: Infraspecific
D: Supraspecific
**A: Interspecific**
80
Feromons are resposible for the following communications?
## Footnote
A: Interspecific
B: Intraspecific
C: Intraspecific
D: Supraspecific
**B: Intraspecific**
81
What is the name of the following life cycle, ¨egg-larva-pupa-adult¨
## Footnote
A: Epimorphosis
B: Anamorphosis
C: Holometamorphosis
D: Hemimetamorphosis
**C: Holometamorphosis**
82
What is the name of the following life cycle, ¨egg-larva-nymph(s)-adult¨
## Footnote
A: Incomplete metamorphosis
B: Epimorphosis
C: Metamorphosis
D: Anamorphosis
**A: Incomplete metamorphosis**
83
What is class?
## Footnote
A: Hexapoda
B: Myriapoda
C: Arachnida
D: Crustacea
**C: Arachnida**
84
Chelicerae are found in
A: Flies
B: Bugs
C: Lice
D: Ticks
**D: Ticks**
85
Psudoscorpions belongs to
A: Hexapoda
B: Insecta
C: Myriapoda
D: Arachnida
**D: Arachnida**
86
Ixodes ricinus belongs to
## Footnote
A: Fleas
B: Soft Ticks
C: Hard Ticks
D: Mange Mites
**C: Hard Ticks**
87
The latin name for Red mite is
## Footnote
A: Dermanyssus gallinae
B: Argas persicus
C: Melophagus ovinus
D: Ixodes ricinus
**A: Dermanyssus gallinae**
88
Mites of Psoroptidae family are?
## Footnote
A: Burrowing
B: Non-burrowing
C: Flies
D: Blood-sucking
**B: Non-burrowing**
89
Ctenocephalides felis belong to
## Footnote
A: Mites
B: Flies
C: Soft ticks
D: Fleas
**D: Fleas**
90
The head is narrower than the thorax
## Footnote
A: Blood-sucking lice
B: Biting lice
C: Chewing lice
D: Bettle
**A: Blood-sucking lice**
91
Blood feeding behaviour of tabnids can be seen amongst
## Footnote
A: Both sex
B: Females
C: Males
D: Larvae
**B: Females**
92
It is a blood-suckling species
## Footnote
A: Musca domestica
B: Oestrus Ovis
C: Stomoxy calicitrans
D: Hypoderma bovis
**C: Stomoxy calicitrans**
93
Life cycle of fleas is
## Footnote
A: Anamorphosis
B: Incomplete metamorphopsis
C: Epimorphosis
D: Metamorphosis
**D: Metamorphosis**
94
The honey bee belongs to
## Footnote
A: Lepidoptera
B: Hymenoptera
C: Diptera
D: Siphonaptera
**B: Hymenoptera**
95
Species of Simuliidae family are
## Footnote
A: Sand flies
B: Mosquitoes
C: Blackflies
D: Tsetse flies
**C: Blackflies**
96
You cannot find pupal stage in the life cycle of
## Footnote
A: Lice
B: Mosquitos
C: Fleas
D: Flies
**A: Lice**
97
Blood feeding behavior of tsetse flies can be seen amongst
A: Larvas
B: Males
C: Females
D: Both sexes
**D: Both sexes**
98
The name of the sheep ked is
A: Psoroptes ovis
B: Melophagus ovinus
C: Lucilia sericata
D: Argas periscus
**B: Melophagus ovinus**
99
Where can you find two sets of antennae?
## Footnote
A: Crustacea
B: Arachnida
C: Myriapoda
D: Insecta
**A: Crustacea**
100
Copepods, Descapoda and crabs belonges to
## Footnote
A: Arachnida
B: Insecta
C: Crustacea
D: Hexapoda
**C: Crustacea**
101
Which is hard thick
## Footnote
A: Culex pipines
B: Stomoxys calicitrans
C: Argas reflexus
D: Dermacentor reticulatus
**D: Dermacentor reticulatus**
102
Which is NOT among the three basic types of selection
## Footnote
A: Stabilzing
B: Directional
C: Bilateral
D: Disruptive
**C: Bilateral**
103
Who raised the possibility of heritability concerning acqired traits?
## Footnote
A: Lamarck
B: Wegener
C: Hardy-Weinberg
D: Darwin
**A: Lamarck**
104
What can be explan the heritability of aquired traits?
## Footnote
A: Four chromosomal changes
B: Mutation
C: Endosymbiotic theory
D: Epigenetics
**D: Epigenetics**
105
Which of the following increases the genetic variation in a population?
## Footnote
A: Selection
B: Mutation
C: Genetic drift
D: Assorative mating
**B: Mutation**
106
What kind of isolating mechanism is exemplified by seasonal differences between eastern and western hedgehogs?
## Footnote
A: Immunological
B: Mechanical
C: Ethological
D: Ecological
**D: Ecological**
107
What does parasitsm generally evolve toward
A: Commensalism
B: Symbiosis
C: Higher pathogenicity
D: Uneven distribution
**A: Commensalism**
108
What kind of transmission is usally characteristic of diarrhogenic pathogens?
## Footnote
A: Vector-borne
B: Vertical
C: Waterborne
D: Attendant-borne
**C: Waterborne**
109
What kind of transmission is usally characteristic for pathogens causing abortion
## Footnote
A: Waterborne
B: Vector-borne
C: Vertical
D: Attendant-borne
**C: Vertical**
110
Which of the following may reduce the pathogenicity of a diarrhogenic agent?
## Footnote
A: Introducing uncontaminated drinking water
B: Customs in traiding
C: Customs in travelling
D:Frequent hunting
**A: Introducing uncontaminated drinking water**
111
Of which disease is the shedding of large amounts of pathogens characteristic?
## Footnote
A: Attendant-borne
B: Waterborne
C: Vector-borne
D: Directly transmitted
**B: Waterborne**
112
The general physical place in the invironment where a certain kind of organism resides is
## Footnote
A: Habitat
B: Niche
C: Fundamental niche
D Realised Niche
**A: Habitat**
113
The potential range of all biotic and abiotic conditions under which an organism can make a living is called its
## Footnote
A: Fundamental niche
B: Realised niche
C: Niche
D: Habitat
**A: Fundamental niche**
114
Interaction with other spescies forces species to live in their..
## Footnote
A: Funfamental niche
B: Realised niche
C: Niche
D: Habitat
**B: Realised niche**
115
Realised is ....... fundamental niche
## Footnote
A: In no relation to the
B: More limited then
C: Less limited then
D: Equally limited as
**B: More limited then**
116
Beneficial for the first, and harmfull for the second participating population is true for...
## Footnote
A: Mutualism
B: Commensalism
C: Amensalism
D: Predation
**D: Predation**
117
Neutral for the first and beneficial for the second participating pupulation is true for...
## Footnote
A: Detritivory
B: Parasitism
C: Herbivory
D: Amensalism
**A: Detritivory**
118
Harmfull for both participating population is true for...
## Footnote
A: Predation
B: Commensalism
C: Competition
D: Amensalism
**C: Competition**
119
The process as a population extincts due to the competition with an other population is called..
## Footnote
A: Competetitive exclution
B: Resource partitioning
C: Character displlacement
D: Niche segregation
**A: Competetitive exclution**
120
Dominance of intraspecific over interspecific competittion enhances....directly
## Footnote
A: Competitive exclusion
B: Character displacement
C: Coexistence
D: Niche segregation
**C: Coexistence**
121
The typical frequency distribution pattern of parasites whitin the host population is:
## Footnote
A: Even
B: Uneven
C: Overdispersed
D: Random
**C: Overdispersed**
122
Which model describes most appropriately the population growth?
## Footnote
A: Clements hypothesis
B: Exponential modell
C: Logistic modell
D: Gleason hypothesis
**C: Logistic modell**
123
Exponential growth model...
## Footnote
A: Does not presume an ideal population
B: Does not consider carrying capacity of the environment
C: Considers interaction between populations
D: Considers the carrying capacity of the environment
**B: Does not consider carrying capacity of the environment**
124
Which factor is density-independent?
## Footnote
A: Earthquake
B: Competition
C: Predation
D: Parasitism
**A: Earthquake**
125
Which does not belong to population dynamics?
## Footnote
A: Generation time
B: Age structure
C: Cost-benefit analysis
D: Exponential modell
**C: Cost-benefit analysis**
126
For which strategy is small body, lots of offspring and a short lifetime span characteristic?
## Footnote
A: K-selected
B: k-selected
C: R-relected
D: r-selected
**D: r-selected**
127
Which one is decomposer?
## Footnote
A: Fungus
B: Ant
C: Moss
D: Tick
**A: Fungus**
128
Can the phytoplankton be primary producer?
## Footnote
A: Yes, because it is photosyntetic
B: No, because it is heterotrophic
C: No, because it is aitotrophic
D: No, because it is not photosynthetic
**A: Yes, because it is photosyntetic**
129
Which ddoes not include antibiotic (physical) environment?
## Footnote
A: Ecosystem
B: Biome
C: Biosphere
D: Population
**D: Population**
130
Which is NOT the effect of agriculture?
## Footnote
A: Algabloom
B: Thinning of ozone layer
C: Biomagnification
D: Monocultures
**B: Thinning of ozone layer**
131
Which trophic level is the most importaint in recycling biological elements?
## Footnote
A: Decomposer
B: Primary producers
C: Primary consumers
D: Top predators
**A: Decomposer**
132
.... are respocible for forming of a behaviour
A: Innate and learned traits togheter
B:Genetic factors
C: Learned traits
D: Environmental factors
**A: Innate and learned traits togheter**
133
What is habituation?
## Footnote
A: Fixed-action pattern
B: Getting used to something
C: Symbolic action
D: Ritualisation
**B: Getting used to something**
134
Fixed-action pattern....
## Footnote
A: Is learned trait
B: Can be observed only in birds
C: Is trigged by a key stimulus
D: Is not affected by evolution
**C: Is trigged by a key stimulus**
135
Which is not operant conditioning?
## Footnote
A: Learning in Skinner box
B: Self-recognition in mirror
C: Trial and error learning
D: Choosing between bad and good tasting food
**B: Self-recognition in mirror**
136
The agressive behaviour of male sticklebacks with other males is...
## Footnote
A: Altruism
B: Fixed-action pattern
C: Supernormal stimulus
D: Habituation
**B: Fixed-action pattern**
137
Which is NOT true for behaviour ecology?
## Footnote
A: Examines the adaptive value of a behaviour
B: Considers evolutionary factors
C: Performs cost-benefit analyses
D: Examines the mechanisms of behaviour forms
**D: Examines the mechanisms of behaviour forms**
138
What is cooperative hunting?
## Footnote
A: Aggression
B:Habituation
C: Social behaviour
D: Alturism
**C: Social behaviour**
139
During ritualisation.....
## Footnote
A: Agression icreases
B: There is a symbolic action
C: There is a fight for life
D: Only the alpha-male is benefited
**B: There is a symbolic action**
140
Which decreases the agressive fight?
## Footnote
A: Territorial behaviour
B: Predation
C: Parasitism
D: Fitness
**A: Territorial behaviour**
141
During courtship of sticklebacks....
## Footnote
A: The main goal is not reproduction
B: There are no genetically determined traits
C: Apperance of the female is a key stimulus
D: Altrism can be observed
**C: Apperance of the female is a key stimulus**
142
Of which is development indirect?
## Footnote
A: Class Monogenea
B: Class Turbellaria
C: Fasciole Hepatica
D: Non of these
**B: Class Turbellaria**
143
In which class is the circulation closed?
## Footnote
A: Cephalopoda
B: Secernentea
C: Scaphopoda
D: Gastropoda
**A: Cephalopoda**
144
What is the approximate size of a Trypanosome?
## Footnote
A: 10-40µm
B: 50-100µm
C: 1-2µm
D: 0,5-1µm
**A: 10-40µm**
145
