Quiz: Family, Order and Class
Taxonomy is disciplined comparison. Once species are gathered into genera, the next questions are larger: which genera share enough structure to sit together, and which of those groupings belong beside one another?
This quiz works through the three middle rungs of the taxonomic ladder — family, order and class — using concrete examples:
- Solanum, Petunia and Datura inside the family Solanaceae
- Panthera and Felis inside the family Felidae
- Cat and dog separated into Felidae and Canidae
- Order Polymoniales (plants) and order Carnivora (animals)
- Class Mammalia, gathering related orders such as Primata and Carnivora
The conceptual core is the gradient of similarity: a family holds fewer shared features than a genus, an order fewer still, and a class fewer again. Plant families are judged on both vegetative and reproductive characters, while higher categories rest on aggregates of characters.
Instructions: Twenty questions, medium difficulty. Read each option carefully — several differ only in the rank being described.
Q1. A family is best defined as a group of related genera that share:
The lesson states that a family has a group of related genera with still less number of similarities as compared to genus and species.
Q2. Plant families are characterised on the basis of:
Families are characterised on the basis of both vegetative and reproductive features of plant species.
Q3. Which three genera are placed together in the family Solanaceae?
Among plants, three different genera Solanum, Petunia and Datura are placed in the family Solanaceae.
Q4. Potato and brinjal are two different species that both belong to the genus:
Potato and brinjal are two different species but both belong to the genus Solanum.
Q5. The genus Panthera comprises lion, tiger and leopard. Along with genus Felis (cats), it is placed in the family:
Genus Panthera, comprising lion, tiger and leopard, is put along with genus Felis (cats) in the family Felidae.
Q6. A cat and a dog are separated into two different families. These are:
Observing the features of a cat and a dog, they are separated into two different families — Felidae and Canidae, respectively.
Q7. An order is best described as the assemblage of families which exhibit:
Order being a higher category is the assemblage of families which exhibit a few similar characters.
Q8. Compared with the different genera included in a family, the similar characters shared within an order are:
The similar characters are less in number as compared to different genera included in a family.
Q9. Plant families like Convolvulaceae and Solanaceae are included in the order Polymoniales mainly on the basis of:
Plant families like Convolvulaceae and Solanaceae are included in the order Polymoniales mainly based on the floral characters.
Q10. The animal order Carnivora includes families like:
The animal order Carnivora includes families like Felidae and Canidae.
Q11. The class category includes:
The class category includes related orders.
Q12. Order Primata, comprising monkey, gorilla and gibbon, is placed in which class?
Order Primata comprising monkey, gorilla and gibbon is placed in class Mammalia along with order Carnivora.
Q13. Which of the following is placed in class Mammalia along with order Primata?
Order Primata is placed in class Mammalia along with order Carnivora that includes animals like tiger, cat and dog.
Q14. Which statement correctly describes the gradient of similarity as one moves up the taxonomic hierarchy?
Similarity thins as the hierarchy rises: a family holds fewer shared features than a genus, an order fewer still, and a class fewer again.
Q15. Order and other higher taxonomic categories are generally identified based on:
Generally, order and other higher taxonomic categories are identified based on the aggregates of characters.
Q16. Which of the following correctly pairs an animal family with the genus Felis?
Genus Panthera is put along with genus Felis (cats) in the family Felidae.
Q17. Which of the following is NOT a family named in the lesson?
Carnivora is an order, not a family; it includes families like Felidae and Canidae.
Q18. Which sequence correctly arranges the categories from lower to higher rank?
Family sits above genus, order above family, and class above order; class includes related orders.
Q19. Which of the following statements about class Mammalia is correct?
Order Primata is placed in class Mammalia along with order Carnivora, and class Mammalia has other orders also.
Q20. Which of the following correctly matches a plant group with the order Polymoniales?
Plant families like Convolvulaceae and Solanaceae are included in the order Polymoniales mainly based on floral characters.