Q: April 4 is World Rat Day. The question is how many living species of rodents are there in the world?
Rodents are any of the more than 2,050 species of mammals characterised by upper and lower pairs of ever-growing rootless incisor teeth. https://www.britannica.com/animal/rodent
More than 2,000
Less than 1,000
More than 10,000
More than 20,000 if you add subspecies
A: 1
Q: Which of the following statement is true about rodents?
Rodents are the largest group of mammals, constituting almost half the class Mammalia’s approximately 4,660 species. https://www.britannica.com/animal/rodent
Rodents are the largest group of mammals
Rodents are the second largest group of mammals
Rodents are the third largest group of mammals
Rodents are the fourth largest group of mammals
A: 1
Q: Which of the following is NOT a rodent?
Hedgehogs as well as shrews and moles are not rodents. They are classified in the Mammal order Eulipotyphla. https://ucmp.berkeley.edu/mammal/rodentia/rodentia.html
Hedgehogs
Porcupines
Chinchillas
Squirrels
A: 1
Q: Which of the following is the largest living rodent?
Capybaras — about the size of a pig, and reaching a maximum weight of 50 kg — live along rivers in the plains of South America. https://ucmp.berkeley.edu/mammal/rodentia/rodentia.html
Capybaras
North American beavers
Porcupines
Patagonian maras
A: 1
Q: Rodents are found native on all continents except...
Rodents are found native on all continents except Antarctica. They show their greatest diversity of form in South America. https://ucmp.berkeley.edu/mammal/rodentia/rodentia.html
Antarctica
The Arctic
Africa
Australia
A: 1
