Question

question no.1.Which pair of characters are found without
exception in all mammals
(1) Hair and viviparity
(2) Viviparity and mammary glands
(3) Viviparity and internal fertilization
(47 Mammary glands and internal fertilization
question no.2. Which of the following animals is an example of
class mammalia
() Manis
(2) Planorbis
Whibian
poret
(3) Hydrophis
(4) Psittacula​

Answer 1

Answer:

1.mammary glands and internal fertilization

Answer 2

Answer:

viviparity and mammary glands