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What is the class name name of rat?

Rat1.jpg
Animalia
Chordata
Mammalia
Rodentia


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The best-known rat species are the _______ rats (Rattus Rattus) and the brown rats (Rattus norvegicus).

black
white
black and white
brown


The best-known rat species are the black rat (Rattus Rattus) and the brown rat (Rattus norvegicus). The group is generally known as the Old World rats or true rats, and originated in Asia.

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Is Domestic rats are same as wild rat ?

no because wild rat color is white
no because domestic rat brain is small
yes
yes because they are same species member


Domestic rats differ from wild rats in many ways. Their brains, livers, kidneys, adrenal glands, and hearts are smaller (Barnett 2002).

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The Norway rat is also known as

"sewer rat"
"brown rat"
"black rat"
"domestic rat"


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What is the average size of Norway rat ?

4 to 5 inches
5 to 7 inches
7 to 10 inches
10 to 12 inches


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Rats bathe themselves, usually _________ times a day or more.

two
three
six
ten


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What is the basic body size of roof rat ?

4 to 8 inches
6.5 to 8 inches
6.5 to 10 inches
4 to 10 inches


Roof rats have a slender body about 6 1/2 to 8 inches long. They weigh about 6 to 12 ounces. Their color varies from black to brownish-gray.

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Rats have been kept as pets at least since the late _________

16th century
17th century
18th century
19th century


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Which University established a population of domestic albino brown rats to study the effects of diet and for other physiological studies in the year 1895 ?

Oxford
IBMO
Clark University
Western University


Clark University is a private research university and liberal arts college in Worcester, Massachusetts. Founded in 1887, it is the oldest educational institution founded as an all-graduate university.

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Which of these is not a Norway rat ?

Rattus norvegicus
Brown rat
Sewer rat
Black rat


It is a destructive pest found in urban and suburban neighborhoods. These rodents eat and contaminate food, damage buildings and other property by their gnawing and burrowing, and may spread diseases that affect people and pets.

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