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WorksheetsTopic 5.3: Classification of Biodiversity
Total questions: 10
Worksheet time: 5mins
An animal has the following characteristics: bilateral symmetry, mouth but no anus, ribbon shape. Which phylum does the animal belong to?
Mollusca
Cnidaria
Annelida
Platyhelmintha
An organism has the following characteristics:
single opening for ingestion and egestion
radial symmetry
tentacles with stinging cells.
In what phylum would it most likely be classified?
Annelida
Cnidaria
Platyhelminthes
Porifera
Which organism is a member of the filicinophyta? (Note that these are not to scale)
The image shows an organism belonging to the Kingdom Animalia. What feature does this organism have in common with all members of the phylum chordata?
Legs and wings
Mouth but no anus
Bilateral symmetry
Chitinous exoskeleton
Which phyla have bilateral symmetry?
annelida, arthropoda, platyhelmintha
porifera, arthropoda, platyhelmintha
cnidaria, porifera, mollusca
porifera, annelida, mollusca
Which is the hierarchy of taxa in order of decreasing numbers of species?
domain, phylum, order, family
phylum, order, family, class
domain, phylum, order, class
phylum, class, family, order
The images show a guinea pig, a mouse, a horse and a whale. Which features support the classification of these four species in the same class?
All are warm-blooded and breathe air.
All have evolved from primates.
All have hair or fur and feed their young with milk.
All have a notochord, vertebrae and give birth to live young.
Which phylum shows radial symmetry?
Annelida
Cnidaria
Platyhelmintha
Porifera
Which of the organisms A–D, identified by the key, represents a reptile?
A
B
C
D
Below is a phylogenetic tree of the three domains.
There are important differences between the three domains. Which of these domains have organelles?
Eubacteria and archaea
Archaea only
Eukaryotes and archaea
Eukaryotes only
