Which of the following is/are the example of monotremes (egg laying mammals)?
a) platypus
b) spiny any eater
c) opossum
d) both a and b
Which
of the following sub-class mammals are called pouched mammals?
a) Prototheria
b) Metatheria
c) Eutheria
d) both a and b
Explanation: also called marsupials as females bear a pouch or marsupium
The mammals of sub-class metatheria or marsupalia are restricted to……..
a) Asia
b) Africa
c) Australia
d) Europe
Explanation: except American opossum
Which of the following are true about marsupials or pouch mammals?
a) body covered with hairs, terrestrial, burrowing or arboreal, no placenta
b) body covered with hairs, terrestrial/aquatic, burrowing or arboreal, no placenta
c) body covered with hairs, terrestrial, burrowing or arboreal, placenta present
d) body covered with scales, terrestrial, burrowing only, no placenta
Which of the following is/are the example of metatheria or marsupalia?
a) kangaroo
b) opossum
c) koala
d) all of these
Which
of the following are true mammals?
a) protheria
b) metatheria
c) eutheria
d) both b and c
Explanation: also called placentalia, having the highest degree of evolution of brain and body structures
