Taxonomy and Classification Quiz

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Questions and Answers

What is written correctly?

"One particular name can be used only for one taxon". It means ... (correct)

"the earliest name should be used". Law of ...

What is not the right order?

Classification of organisms on the basis of their overall similarity is ... (correct)

"Binomial system" is based on ...

Whittaker recommended ... kingdoms

Geographical isolation: they show morphological differences but can still exchange genes when they meet and mate". (correct)

The modern science of classification is called ...

Which is not taxonomic category?

stability Signup and view all the answers

Which order does the genus Trypanosoma belong to?

Kinetoplastida Signup and view all the answers

Which order does the genus Leishmania belong to?

Kinetoplastida Signup and view all the answers

Which order does the genus Giardia belong to?

Diplomonadida Signup and view all the answers

Which does not have a cyst?

Trichomonas sp. Signup and view all the answers

Which has a cyst?

Plasmodium Signup and view all the answers

Which is the most important genus of the coccidia without cyst formation?

Microspora Signup and view all the answers

Which genus belongs to cystogenic coccidia?

Eimeria Signup and view all the answers

Which is the most important genus of haemosporinids?

All three Signup and view all the answers

Which is the most important genus of protoplasms?

Anthozooa Signup and view all the answers

Which develops also in blood-sucking arthropod vector?

Scyphozoa Signup and view all the answers

Which group is the most closely related to cnidarians?

Bilateria Signup and view all the answers

In which class is the medusa stage absent?

Hydrozoa Signup and view all the answers

In which class is the polyp stage sometimes absent?

Scyphozoa Signup and view all the answers

In which class is the budding of the polyp stage terminal?

Hydrozoa Signup and view all the answers

What is the approximate number of species in phylum plathelminthes?

Pseudocoelomata Signup and view all the answers

Which category do flatworms belong to?

Deuterosomia Signup and view all the answers

What kind of gut do cestodes have?

No gut Signup and view all the answers

Where does coracicium develop?

In exterior Signup and view all the answers

In which category is the six-hooked Taenia oncosphere the first stage larva?

Order Cyclophyllidea Signup and view all the answers

How many ovaries does an adult Taenia usually have?

hundreds Signup and view all the answers

In which class is there pseudocoelome (primary, false body cavity)?

Rotatoria Signup and view all the answers

Males of which group have always copulatory bursa?

Strongylida Signup and view all the answers

Approx. how many described species do nematodes have?

200 000 Signup and view all the answers

What is the approx. number of nematodes significant from the veterinary point of view?

200 Signup and view all the answers

Into which category does the largest species of the following groups belong to?

Nematoda Signup and view all the answers

What can be found in the buccal capsule of nematodes?

tooth Signup and view all the answers

Where does Lumbricus terrestres belongs to?

Subclass Oligochaeta Signup and view all the answers

What is the characteristic of Lumbricus terrestis?

Chaetae (bristles) in bunches Signup and view all the answers

What kind of feeding apparatus may leeches have?

Muscular pharynx Signup and view all the answers

In which categories can the absence of shell be observed?

Apocophora Signup and view all the answers

Where does the probably most intelligent invertebrate belong to?

Cephalopoda Signup and view all the answers

Where do sac animals (sea-squirts) belong?

Prochordata Signup and view all the answers

What is the characteristic of phylum Hemichordata?

notochord Signup and view all the answers

Where do hagfish belong?

Acrania/Myxini Signup and view all the answers

Where do lampreys belong?

Gnathostomata/Cyclostomata Signup and view all the answers

Which fin can be regarded as a limb (extremity)?

Pelvic fin Signup and view all the answers

Which is the most ancient type of scales (characteristic of Chondrichthyes)?

placoid Signup and view all the answers

What kind of body covering do actinopterygians have?

Slightly cornified Signup and view all the answers

What kind of body covering do elasmobranchs have?

Citinous jaws Signup and view all the answers

Study Notes

Correct Taxonomic Naming

The earliest name should be used, per the Law of Priority.
One particular name can only be used for one taxon.

Incorrect Taxonomic Order

The binomial system is based on the classification of organisms based on similar characteristics.
Whittaker recommended kingdoms as a classification.
Geographical isolation shows morphological differences, but species can still exchange genes if they meet and mate.
Evolutionary classifications are different from standard taxonomy.

Taxonomic Categories

Order: A taxonomic rank above Family, and below class
Class: A taxonomic rank above Order, and below Phylum
Order/class/subphylum: is a taxonomic rank of one name, used in evolutionary cladistics
Species/genus/family: uses 2 names and observed in evolutionary systematics
Subspecies: a taxonomic rank of organisms; (a rank below species) (used in phenotypic classifications)
Biospecies: a taxonomic rank used in classifications including biological systematics
Breed: is a taxonomic classification used in zoology
Species: taxonomic rank in biology

Additional Taxonomic Information

Phenetics: A method of classification based on the degree of overall similarity between organisms.
Cladistics: A classification method based on evolutionary relationships and branching patterns.
Homonyms: Multiple names for a single species can not be used, the earliest should be used.
Priority: in nomenclature, the first named taxa has naming priority
Stability: in nomenclature, using the same name for the same taxa
Scientific nomenclature: rules for scientific naming of organisms
Muscidae: A taxonomic order (Insects)
Musca domestica: A taxonomic species (House fly)

Phylogenetic Relationships (Based on Provided Questions)

Trypanosoma: belong to a specific order (not specified)
Leishmania: belong to a specific order (not specified)
Giardia: belong to a specific order (not specified)
Emeria: does not have a cyst but many other genera do
Cystogenic coccidia: genus not found
Haemosporinids: genus not found
Piroplasms: genus not found
Cnidarians: organisms mentioned are related

Categorizations and Characteristics

Flatworms (Platyhelminthes): A large phylum of invertebrates.
Cestodes: flatworms with a characteristic lack of a gut and no feeding structures
Trematodes: parasitic flatworms with a gut
Nematodes: roundworms, have different feeding methods.
Guts: Some have one-branched; others have two-branched blind endings, three-branched guts
Ovaries: Adult tapeworms have multiple ovaries
Pseudocoelomates: have a body cavity
Copulatory bursa: males feature such structures in some nematodes
Lumbricus terrestris: an earthworm
- Characteristics: details not specified, but characteristics are noted
Feeding apparatuses: Leech feeding methods are noted but details not explicitly mentioned
Invertebrate intelligence: Cephalopods, mentioned as possibly the most intelligent invertebrates noted.

Organisms with Particular Structures

Sea squirts (Hemichordata): Have specific characteristics for their phylum.
Hagfish: are described to have specific characteristics
Lampreys: are described to have specific characteristics
Chondrichthyes (Cartilaginous fishes): have characteristics including teeth, fin types, and body cover.
Actinopterygii (Ray-finned fishes): have specific characteristics including teeth, fin types, body cover.

Additional Information

Number of species: (inferred from the questions), such as nematodes, and other organisms are mentioned
Specific details on organisms have been mentioned in the questions such as taxonomic classification and characteristics.

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Description

Test your knowledge on the principles of taxonomic naming and classification. This quiz covers important taxonomic ranks, the Law of Priority, and differences between traditional and evolutionary classifications. Perfect for students studying biology and taxonomy.